#Aurelia JS tutorial

[phptutspoints]

Aurelia JS Overview

Aurelia JS Overview Aurelia is a modern, front-end JavaScript framework for building browser, mobile, and desktop applications. Learn More Here : https://phptutorialpoints.in/aurelia-js-overview/ #php #phptutorial #phptutorialpoints #webdevelopment #webdevelopmenttutorial #aureliajs #aureliajstutorial #aureliajsdevelopment #aureliacli #aureliaframework #aureliajavascriptframework

In this article, we’ll see Aurelia JS Overview. What is Aurelia? Aurelia is a modern, front-end JavaScript framework for building browser, mobile, and desktop applications. It focuses on aligning closely with web platform specifications, using convention over configuration, and having minimal framework intrusion. Aurelia JS is designed to work seamlessly with modern web standards and…

[mancdev]

VueJS & Firebase Cloud Firestore Stripped-Back - Tutorial Part 1

In this tutorial series we will explain how to start developing with the Vuejs framework & Firebase Cloud Firestore to build full-stack web applications. We’ll start from scratch by stripping everything back to the basics - no CLIs, build tools or bundlers, just a HTML page, an editor and a browser so you can get to grips with building apps with Vue & Firebase more quickly and be productive faster.

VueJS

Vuejs is now one of the big 3 Javascript frameworks in the web client ecosystem. However it’s not developed or backed by a huge corporation, it was developed by one individual, Evan You. The proliferation of JS frameworks in recent years has led to the term “Javascript Fatigue” where developers have become weary of all of the new and self-proclaimed “latest and greatest” open source frameworks. It is in this environment that Vue has emerged through all of the noise to become a major player alongside Angular and React (both backed by huge technology companies, Google and Facebook respectively). That Vue has achieved such a status in this environment backed by one individual highlights just how Vue has hit a chord with developers and is filling a gap that isn’t being met by Angular, React or other competitors like Ember and Aurelia.

Evan You is an ex-Googler who was familiar with AngularJS (often referred to as Angular 1) and used it for internal projects at Google that he was working on. He set out to achieve a framework that delivered the benefits of AngularJS but was more lightweight, faster and better suited to smaller apps that didn’t require the heavy-lifting of the huge apps that AngularJS was originally built to develop such as their Adwords platform and their internal CRM system. What he produced was a beautifully simple solution and it quickly attracted adoption as the front-end framework of choice for many PHP developers, particularly from the Laravel community.

Despite promising early adoption in some quarters, Vue may well have stayed a “me-too” framework in the ecosystem had it not been for Google’s decision to redevelop their AngularJS framework from scratch. Angular (often referred to as Angular 2) was such a departure from the original AngularJS framework that it introduced a fundamental shift in approach and required developers to learn many new concepts just to build basic apps. Developers were kept in limbo between AngularJS and Angular for almost 2 years, with many alphas and then  betas and many breaking changes and missing pieces to deal with during the transition and then no easy migration path for their existing code and apps.

There’s no doubt that, as a new framework in it’s own right, Angular is a fantastic, powerful, all-in-one next generation framework but it isn’t “Angular” as millions of developers know it. Perhaps the biggest mistake Google made was in not launching their next-gen framework under new branding. In any event and unfortunately for Google, Angular 2 was too big a change for many developers and while uptake was initially high, it hasn’t achieved the type of ongoing adoption or love as AngularJS or React and it’s clear that Vue, with many obvious similarities to the original Angular, has arrived just in time to sweep up and become a magnet for disgruntled Angular devs.

In addition, the droves of developers jumping in to the Javascript ecosystem over the past years, in their evaluation of an appropriate framework, are choosing Vue in vast numbers due to how easy it is to learn and how quickly they can start building apps. I would say that the best word to describe Vue to developers choosing a framework is “approachable” - it seductively invites you in and once there you find it’s so intuitive and simple to get productive, covering all of the bases you need, that once you’re in you tend to stick with it. For me personally I actually enjoy spending my days developing around Vue, I cannot say the same for Angular unfortunately.

In 2018, Vue is set to gain even greater momentum and overtake Angular into second place in the Javascript framework popularity chart. The main reason for this may be that the massively popular Ionic mobile and PWA framework is about to release a version that decouples it from Angular and enables developers to build apps with Ionic using any framework (or none at all). It’s interesting that this is likely to be a tipping point for Vue to achieve critical mass and yet is due to the Ionic team’s concern that Angular isn’t seeing the level of adoption anticipated and continuing to hitch their wagon to Angular is likely to hamper their own growth.

To address this, in Ionic 4, they’ve developed a framework-agnostic, web component-based edition of their mobile framework. When you look online it’s fairly clear that the majority of the delight at Ionic’s shift away from Angular is coming from those who want to use Ionic with Vue. Personally I only stuck with Angular because of Ionic despite my preference for Vue and since their announcement of Ionic 4, I have thrown myself fully into Vue. The sweet spot that Vue hits between Angular and React is in delivering a more lightweight and simple approach than Angular, focussing first and foremost on being a view renderer like React but providing optional elements that are officially supported and developed by the Vue core team, such as routing that can be easily dropped in to your app. This is what is meant when Vue is called a “progressive framework”, you can start by using as little or as much of the framework as you need, progressively using more of it’s subsidiary elements as required. Another advantage to using Vue is that it’s lightweight enough to use it in one part of your app and progressively expand it to other parts when you’re ready, for example if you have existing app in vanilla Javascript, jQuery or another framework that you want to change over to Vue piece by piece.

As mentioned, Vue’s biggest advantage is it’s simplicity and approachability. While other frameworks require knowledge of build systems, CLIs, Node, NPM etc just to start building an “Hello World” app, with Vue you can strip everything right back, open up an HTML file in an editor and get started simply without needing to spend time learning anything else. While you’ll likely want to move over to the full modern JS development environment as you get more involved, it isn’t required to get started.

Firebase Cloud Firestore

So Vue is a fantastic front-end framework but to build even the most trivial worthwhile app, we need a back-end and a data store. Like with using Vue, we want to use something that delivers simplicity and approachability yet gives us the power to build advanced apps as you become more experienced. For this project Firebase Cloud Firestore is a no-brainer to use as the database back-end. Like Vue, we can just get started using Firebase with just a basic HTML page - no need for CLIs and build tools to just start building something.

I first used Firebase back in 2014, when they were a small, private company shortly before they were acquired by Google. At the time Firebase was not a platform but a hosted realtime database and I fell in love with it immediately - for prototyping it was perfect and it’s realtime capabilities were just awe-inspiring at the time.

However Firebase did have some serious limitations that made it unsuitable for me to use as the back-end database in a production app. It didn’t allow server-side code, so all of your logic was exposed on the client and it’s database querying facilities were extremely limited. Also, as a No-SQL document database, organising relational-style data into something that was manageable without joins and queries required denormalisation and duplication of data, something which is anathema to those coming from a SQL-based relational database background. I felt it was a real shame as, despite these limitations, it was very impressive and working with it’s Javascript API was a joy.

After Google’s acquisition, Firebase was expanded into a full serverless platform allowing for storage, cloud messaging, hosting, authentication, analytics and much much more. What had been “Firebase” became the Realtime Database element of the platform. Fortunately Google started to address the limitations that I and many other developers had found with the original Firebase. First server-side code, in the form of Cloud Functions, was added which enables you to put more of your sensitive business logic code onto the server.

More recently Google introduced an alternative database to the original realtime database which they call Cloud Firestore. Cloud Firestore addresses many, but not all, of the issues with the realtime database in terms of querying and organisation of data. It still provides the full realtime capabilities that we know and love and is still a No-SQL database based on documents. However you can now organise them into Collections (similar to relational DB Tables) which enables you to perform much more advanced queries. You can have specifically defined fields each of which can have a specific type. One of these types is the Reference type which lets you store links between documents on different collections to enable a form of join. In addition Cloud Firebase enables offline usage so the user can continue to use your app even if access to the server isn’t available. There are still limitations, remembering it’s not a relational database, and full joins are not possible and neither are aggregate queries such as SUM, COUNT etc. However with 90% of the issues I had with the original Firebase realtime database now dealt with through Cloud Functions and Cloud Firestore, Firebase is now an excellent choice as the back-end, serverless platform and data store for building full-scale production apps.

OK so enough talk about the what and why, let’s get going with the how and write some code. We’re going to start, as we’ve talked about, with a single HTML page. Choose your OS, code editor and browser of choice (I’m using VSCode on OSX and highly recommend using Chrome as your browser).

Open up your editor and select to create a new file in a new folder. Just call the new file index.html. Once you’ve done this, start with a skeleton html page as shown below :

<html>

     <head>          <title>VueJS & Firebase From Scratch</title>      </head>

     <body>

     </body>

     <script>

     </script>

<html>

The first thing we’ll need to do is to import the VueJS library. We can do this with a CDN link (see below) which is placed below the closing body tag and before the opening script tag  :

<script src="https://cdn.jsdelivr.net/npm/vue"></script>

This recommended CDN link is correct at the time of writing however may change in future. To ensure it’s correct, once you’ve inserted this link into your page, save it and open it up in Google’s Chrome browser (select File from Chrome’s menu and select Open File … to navigate and select your newly created index.html file). The page will show as blank in any case however right-click on the page and select Inspect from the pop-up menu and click the Console tab. If this displays nothing eg there are no error messages then you’re good however if you do get an error complaining about the vue library then browse to https://vuejs.org/v2/guide/ and look for the link displayed under Getting Started.

We’re ready to build our app! The first thing we need to do is to create the Vue Instance Object that will be used as the core of your app.

<script>      var app = new Vue({                           el : '#app'      }) </script>

This creates a new Vue instance that we can reference throughout our html template and which contains all of the data and methods that we’ll create to develop the app. Some call it the View Model however we’ll stick to calling it the Instance Object. We simply create a new object called app from Vue and pass in an object with all of the information about our app. To begin with, we only declare a single property in this object which is el, short for element, and we assign #app. This tells Vue that any reference to an element that has the id of app is to be controlled by our Vue Instance Object.

In our html template we can now simply create a container html tag and assign it the id of app. All of the content within that tag is then controlled automatically by our Vue instance object. (Please note that any content in bold from here on in denotes new or changed content.)

<body>

     <div id=‘app’>

     </div>

</body>

Please note : Unlike AngularJS, with Vue you cannot assign the reference to the Instance Object on the body tag, you have to create your own container tag to assign it to, as in this case we’re assigning it to a div container.

Great but we’re not actually doing anything yet. Now we want to give our app some life. To do this we’ll give the app a name and display it as a title and we’ll do this as data held on the Instance object rather than write it directly on the template. To do this we’ll need to add another property called data to our instance object. The data property is an object which contains any variables you want to reference in your template or elsewhere in your app. In this case we’ll create a variable called appTitle and assign it a name. The app we’re going to build is an employee tracker that is going to be so indispensable to it’s users that it will be like magic!

<script>      var app = new Vue({                           el : '#app’,                           data : {                                       appTitle : ‘EmployeeMagic’                           }      }) </script>

We can now use the data binding features of Vue to display our new app title in our page template.

<body>

     <div id=“app”>

         <h1>{{ appTitle }}</h1>

     </div>

</body>

Save and refresh your page in Chrome and you’ll see EmployeeMagic as your app header. The double curly braces are pretty standard in most frameworks these days to denote data-binding (also called interpolation). The content inside the double-curlies is interpreted by Vue and the required content is displayed at that point in the template. In this case Vue recognises that we have a variable called appTitle in data in our Instance Object and replaces it in our template with the value contained in the variable. There are many benefits of data-binding, the main one being that any change in the variable in our instance object is automatically reflected in our template without any additional effort on our part.

So far so good but it’s a little plain-Jane so let’s add the Bootstrap library link for a bit more aesthetic to it without any extra effort. The link used below for then Bootstrap CDN was current at the time of writing however check the Bootstrap website if you have trouble with the link :

<header>      <title>EmployeeMagic</title>

     <link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0-beta.3/css/bootstrap.min.css"/>

</header>

Let’s say however we want to add a margin around the app so it’s not displaying right up against the edge all the time. To do this we’ll need to add some CSS styling however we can take advantage of a cool Vue feature which lets us set our styles programatically.

Let’s add another variable to our data object which is specifically for styles, let’s call it mainStyle. This will be an object so that we can assign as many different CSS style settings as we like. For now we just want to assign a margin of 20 pixels :

<script>      var app = new Vue({                           el : ‘#app’,                           data : {                                      appTitle : ‘EmployeeMagic’,                                      mainStyle : { ‘margin’ : ‘20px’ }                            }      }) </script>

Now we need to tell Vue where to use that styling property in our template. We’ll create a new container div tag to wrap around the rest of our app. In that tag we need to tell Vue to assign the styling we’ve defined in mainStyle. To do this we can use a Vue directive called v-bind:style and assign it the name of style object we want to use.

<body>

     <div id=“app”>

         <div v-bind:style=“mainStyle”>

             <h1>{{ appTitle }}</h1>

         </div>

     </div>

</body>

Save and refresh in Chrome and you’ll see the margin has been applied. I personally love this feature of Vue and there are lots more you can do to apply styling which we’ll cover later in the tutorial.

It’s interesting to note that when using directives such as v-bind:style, Vue offers a more shorthand way by dropping the v-bind. If Vue just sees :style it knows what to do, so we could have used ...

<div :style=“mainStyle”>

... instead. Throughout these tutorials I’ll continue to use the more verbose version to show the full directives consistently however where a new directive is shown, I’ll also highlight the shorthand version. Generally if you see v-bind followed by a colon and the command, you can drop the v-bind although there are exceptions that we’ll cover in a future part of the tutorial.

We’ve so far covered what VueJS and Firebase Cloud Firestore are, why we’re using them as the framework and platform for this app, and the basics of setting up a simple HTML page to build our employee tracker app, setting up our Vue object, basic data-binding and styling using a Vue directive.

In the next 4 parts of this tutorial we’ll focus on each element of CRUD (Create, Read or Retrieve, Update and Delete) so in part 2 we’ll deal with Creating records to store in our Firebase Cloud Firestore.

Hope you can join me in Part 2 :)

You can download the completed code for this part of the tutorial on Github using the repo below and select the part1 folder. https://github.com/MancDev/VueFire

[t-baba]

Fun and games with JavaScript

#484 — April 17, 2020

Unsubscribe  :  Read on the Web

🕹 If you're bored this weekend at all, consider joining the latest Ludum Dare — it's an online game jam that's been taking place for 18 years and more JavaScript entries are appreciated against all the Unity crowd 😂

JavaScript Weekly

Writing an 'Emulator' in JavaScript (and Interfacing with Multiple UIs) — This is really neat. Tania built a Chip-8 interpreter in JavaScript and has gone into quite a bit of detail about what was involved here. Lots of neat bits and pieces to pick up from this.

Tania Rascia

jQuery 3.5.0 Released — I know many of you will groan, but I’m delighted when I see a new jQuery release. It’s still so heavily used. No headline features though, this is a security fix for a cross-site scripting vulnerability, plus some tweaks and fixes in preparation for jQuery 4.0 (yes!)

Timmy Willison (jQuery Foundation)

Build a Game of Battleship with TypeScript & Java. Free Course — Join over 2000 developers creating a game of Battleship with TypeScript, Spring Cloud Stream (Java), and PubSub+. This free 30-minute course is a great way to learn the basics of messaging and event-driven architecture with the Aurelia framework.

Solace sponsor

Profiling React.js Performance — Goes into detail on aspects of the React Profiler API, React’s new experimental Interaction Tracing API, and measuring custom metrics using the User Timing API.

Addy Osmani

Userscripts are Fun and Still Very Much Relevant — ‘Userscripts’ are basically JavaScript programs that run in the context of other Web pages so you can add your own features. They were really popular for a while but still exist and are still a neat use case for using JavaScript to improve your Web experience.

Eldad Bercovici

Another Look at What's New in ECMAScript 2020 — We linked to Dr Axel’s roundup recently, but here’s another take, looking at dynamic imports, nullish coalescing, optional chaining, BigInt, and more.

Ianis T.

⚡️ Quick Releases

Node 13.13.0 — File system API tweaks, and more.

jQuery 3.5 — So classic we had to link it twice.

Cypress 4.4.0 — Testing framework. Now supports TypeScript without plugins.

Discord.js 12.2 — Interact with Discord from Node.

💻 Jobs

JavaScript Developer at X-Team (Remote) — Join the most energizing community for developers. Work from anywhere with the world's leading brands.

X-Team

Senior JavaScript Developer (Warsaw, Relocation Package) — Open source rich text editor used by millions of users around the world. Strong focus on code quality. Join us.

CKEditor

Find a Job Through Vettery — Vettery specializes in tech roles and is completely free for job seekers. Create a profile to get started.

Vettery

📚 Tutorials

How To Create a Particle Trail Animation in JavaScript — Particle animations are particularly (sorry) striking.. and in this article, Anna Prenzel shows how to easily create your own such effects with Anime.js.

Smashing Magazine

Strategies for Migrating to TypeScript — A quick overview of some strategies for migrating code bases from JavaScript over to TypeScript.

Dr. Axel Rauschmayer

Developing in a Monorepo While Still Using Webpack — Second part in a series discussing things the team at Etsy learned during the migration of a home-grown, Require.js-based build system to webpack, which took over a year.

Salem Hilal

A More Productive Way to Build Your JavaScript Apps — Write better code, debug it, and test it – all in one place. Try WebStorm. No configuration required.

WebStorm sponsor

▶  Let's Build a Digital Circuit Simulator in JavaScript — A special episode of the Low Level JavaScript series takes us on a brief journey into the world of digital logic.

Low Level JavaScript

How To Set Up an Express API Backend Project with PostgreSQL — A pretty extensive walkthrough of creating an HTTP API using Express with Node.js and Postgres on the backend, then deploying it all on Heroku.

Chidi Orji

Speed Up Your Angular App: 14 Optimization Tips — Tips on how to make your Angular app smaller, faster, and more responsive.

Marcelo Ricardo de Oliveira

Class-Related Types in TypeScript

Dr. Axel Rauschmayer

📅▶ A Fireside Chat on the State of Microservices on April 21 — We recently helped The Software House with a developer survey (thanks to those who took it!) and now they’re doing a live chat on the state of microservices next Tuesday featuring Yan Cui, Alessando Vozza, and others.

The Software House

🔧 Code & Tools

Puppeteer 3.0: It Now Supports Firefox — Best known for as a way to headlessly control Chrome from Node, Puppeteer has recently seen some competition in the form of the cross-browser Playwright recently. But, no fear, Puppeteer is stepping up and can now work cross-browser too. We also learn Puppeteer is migrating to TypeScript.

Mathias Bynens

Open-Source Serverless CMS Powered by React, Node.js and GraphQL API — Build dynamic websites and apps with Webiny. 100% powered by JavaScript. Deploy your sites to AWS Lambda.

Webiny Serverless CMS sponsor

Rome: An Experimental JavaScript Toolchain — A compiler, linter, formatter, bundler, testing framework and more. Started by Sebastian McKenzie (of Babel and Yarn fame), Rome is now a project from the React Native team at Facebook. Related repo.

Facebook

Vime: A New, Modern Media / Video Player for the Web — Aims to be a ‘modern alternative to Video.js and Plyr’: “The idea behind Vime is we want you to control the player, not the other way around.” Modular, tree-shakable, and with potential for a plugin ecosystem. GitHub repo.

Rahim Alwer

Vuln Cost: An Open Source Security Scanner for VS Code — Free Snyk-powered VS Code extension that finds security vulnerabilities in npm packages, providing feedback in-line with your code, such as how many vulnerabilities a package has.

snyk

ip-num: A Library to Work with ASN, IPv4, and IPv6 Numbers — Happy in both Node and the browser.

dadepo

Flip: Animated Flip Counter Plugin to Add a Countdown to a Website — Adds an animated dynamic countdown timer to a page. No dependencies, responsive and mobile friendly, and fits any language, locale, or time zone.

Rik Schennink

The Perfect Partner to MongoDB Atlas. Try It for Free

Studio 3T sponsor

A JavaScript API for Controlling 'Simpsons: Hit & Run' — Including this as a bit of fun if you fancy noodling on something odd. Remote controlling games from JS seems neat, although I suspect just getting this running would take a while..

Tavis Ormandy

by via JavaScript Weekly https://ift.tt/3aeahRr

[udemy-gift-coupon-blog]

Web Development with New Framework ##Udacity ##udemykupon #Development #framework #Web Web Development with New Framework Aurelia is a JavaScript client framework for web, mobile and desktop. It allows you to write clean, modular JavaScript. The framework follows simple conventions and is focused on web standards. Through these tutorials we shall learn about web and mobile app development using open source UI framework Aurelia JS. The training will include the following; Introduction and Overview of AureliaJS Environmental SetUp Application Structure ES6 and ES7 Components of Aurelia Application Component Life Cycle Data Binding Custom Elements Dependency Injections Basic Configuration Binding Behavior Plugins Converters Events Event Aggregator Forms HTTP Refs Routing Life Cycle Routing Implementation History Animations Dialog Localization Tools Bundling Debugging Community Best Practices Sample Project description – An Aurelia sample app that lets you browse and edit contacts. Who this course is for: Web developers Students Someone who wants to learn about Aurelia framework 👉 Activate Udemy Coupon 👈 Free Tutorials Udemy Review Real Discount Udemy Free Courses Udemy Coupon Udemy Francais Coupon Udemy gratuit Coursera and Edx ELearningFree Course Free Online Training Udemy Udemy Free Coupons Udemy Free Discount Coupons Udemy Online Course Udemy Online Training 100% FREE Udemy Discount Coupons https://www.couponudemy.com/blog/web-development-with-new-framework/

[suzanneshannon]

8 Most Interesting JavaScript Frameworks to Learn in 2019

Web development has become so complex, that these days many developers rely on frameworks when building applications for the web. JavaScript frameworks speed up the development workflow, enforce best practices, and provide you with a maintainable code base and an effective architecture.

In this collection, you can find 8 awesome JavaScript frameworks that might be worth your attention in 2019. It’s not a comprehensive list by any means, but it can be a good starting point to assess the landscape of JavaScript frameworks and decide what to learn next.

1. React

React is a popular JavaScript framework, created and maintained by Facebook. You can use it to build interactive user interfaces for single page applications. React has introduced a component-based architecture to web development that challenged the traditional MVC (Model-View-Controller) pattern. React components are encapsulated and manage their own states. When the data changes, React updates only the components that have been affected by the change.

There’s a huge ecosystem around React, including learning materials, an enthusiastic developer community, and a plethora of tools. Although React has been around for a while, it’s still evolving. There are a lot of jobs for React developers, too. If you want to master a JavaScript framework that will likely stay relevant in the future React is definitely worth your time.

2. Vue.js

Vue.js allows you to build single page applications and UI components using a lightweight and versatile JavaScript framework. It’s progressive which means you can use it as both a library that adds extra features to an existing user interface or a framework that runs your whole application. Vue is frequently compared to React, as it also splits a web page into reusable components.

Vue uses its own HTML template syntax with which you can bind the rendered DOM to the underlying data. When the data changes, Vue automatically updates all instances in the HTML. Although React is still more popular, Vue is quickly catching up. It has a flat learning curve, great dev tools (even a Vue CLI), and some decent learning resources, too.

3. Angular

Angular is a TypeScript-based JavaScript framework developed and maintained by Google. The versioning of the Angular framework is a bit confusing. Angular 2 was a ground-up rewrite of AngularJS (1.x). By now, it has reached version number 7 (Angular 7). While AngularJS was an MVC (Model-View-Controller) framework, Angular 2+ is considered component-based. They follow a completely different logic, so AngularJS apps can’t be updated to Angular 2+.

With Angular, you can create single-page applications for any platforms, including web, mobile web, native mobile, and native desktop. It’s a great choice if you have already used a statically-typed language such as Java, C++, or C#. It takes more time to learn Angular than Vue or React, as it has a large code base and several possibilities. But, it has a huge ecosystem and is very popular on the job market, too.

4. Next.js

Next.js is a minimalist JavaScript framework that makes server-side rendering possible in React applications. By default, React renders all content on the client side, which leads to a couple of problems. First, the user has to wait until all scripts load in the browser. Second, it might cause some SEO issues, too, as search engines are still not that good at indexing JS apps. The solution to this problem is rendering content on the server side before sending it to the browser. And, this is what Next.js does really well.

It comes with awesome features such as hot code reloading, automatic code splitting, automatic routing, and more. If you use Next together with React, you get Vue’s simplicity combined with React’s powerful features. If you already use React, Next is definitely a good next step in mastering JavaScript app development. Next.js has great in-house tutorials that let you get started with the framework in just 1-2 hours (if you are an experienced JS developer).

5. Relay

Relay is another JavaScript framework that helps you create better React applications. Just like React, Relay is also developed and maintained by Facebook. It allows you to create data-driven React apps powered by GraphQL. GraphQL is a query language with which you can make specific server requests—it’s considered as an alternative to REST.

The Relay framework enables you to create static queries by adding GraphQL to the views that will use the data. Then, Relay aggregates these queries into consistent network requests. By generating code ahead of time, you can create faster and more performant applications. You can either convert your existing React apps with Relay or start to develop a new one using Relay Modern (a streamlined version of the Relay framework).

6. Mithril.js

Mithril is a lightweight JavaScript framework with several features similar to React and Vue. You can check out the detailed framework comparison to React, Vue, and Angular in Mithril’s documentation. If you are on the look for a really small framework that lets you build single page applications, Mithril might be an excellent choice for you. It weighs just 8 KB (gzipped) and runs almost twice as fast as React and Angular.

Similar to view frameworks like Vue and React, Mithril also relies on components and interacts with the virtual DOM. However, it also has some built-in utility modules you won’t find in React, such as out-of-the-box XHR and routing.

Mithril has a relatively flat learning curve. You can get started learning with the Mithril team’s 10-minute learning guide (right on the homepage). Due to its simplicity, Mithril might not be the best solution for a complex project, but it provides you with everything you need to create a simple application.

7. Aurelia

Aurelia focuses on web standards, uses convention over configuration, and comes with minimal framework intrusion. It’s a unique JavaScript framework, as it lets you build UI components using vanilla JavaScript or TypeScript. Aurelia components are, in fact, simple JS/TS classes with corresponding HTML templates. The syntax is quite straightforward, here’s a simple example from the docs:

// app.js export class App { welcome = "Welcome to Aurelia"; }

<!-- app.html --> <template> <form> <label for="name-field">What is your name?</label> <input id="name-field" value.bind="name & debounce:500"> <p if.bind="name">${welcome}, ${name}!</p> </template>

As you can see, if you know how to use HTML and JS, you can start creating Aurelia applications without much further learning. Aurelia has a reactive binding system and syncs your UI with the best performance possible. It also has a fairly large ecosystem with developer tools like a CLI, Chrome debugger, and Visual Studio Code plugin.

8. Svelte

The Svelte framework has been created with the intent to solve the JavaScript bloat crisis of the web. Its creators call it the “magical disappearing UI framework”, as it transforms framework code into framework-less vanilla JavaScript. Svelte has its own compiler that converts the app code into client-side JavaScript at build time, instead of interpreting it at runtime as most frameworks do. As a result, the framework code disappears by the time it reaches the user’s browser.

Svelte apps are built of single-file components using the .html extension. You can either create an entire application with Svelte or incrementally add it to an existing code base. It’s also possible to ship standalone Svelte components that work anywhere without any external dependencies. Svelte has a relatively flat learning curve. If you want to experiment with a JavaScript framework that relies on its own compiler, Svelte is worth a closer look.

More JavaScript Frameworks

The frameworks we have discussed in this article are just a small selection of all JavaScript frameworks—the ones we have found the most interesting at this point in time. If you are interested in more options, you can also consider having a look at the following frameworks:

Ember.js

Meteor.js

Knockout

React Material UI

If you want more resources related to React – which is still the no. 1 JavaScript framework – take a look at our collection of the best React development tools or learn how to get started with Facebook’s Create React App, too.

8 Most Interesting JavaScript Frameworks to Learn in 2019 published first on https://deskbysnafu.tumblr.com/

[viralleakszone-blog]

Web Development

http://www.viralleakszone.com/web-development/

Web Development

Web Development

AJAX Tutorial

Amazon Web Services Tutorial

Angular Material

Angular 2

Angular 4

AngularJS Tutorial

Apache Tapestry

ASP.NET

Aurelia

Axure RP

BackboneJS Tutorial

Bootstrap Tutorial

CakePHP Tutorial

CherryPy

CodeIgniter

CoffeeScript

cPanel

CSS

CSS Buttons

D3.js Tutorial

DC.js

Django

Drupal

Electron

EmberJS Tutorial

ExpressJS Tutorial

ExtJS Tutorial

ES6 Tutorial

Firebase Tutorial

Flask Tutorial

Flex

Flexbox

Foundation

Framework7

FuelPHP

Google Maps

Grav

Grunt

Gulp

GWT

GWT Google Charts

GWT Highcharts

Highcharts

HTML

HTML5

HTTP

JasmineJS

Javascript

Joomla

jQuery

JqueryUI Tutorial

JavaServer Faces (JSF)

KnockoutJS

Koa.js

Laravel

Less

LeafletJS

MathML

[desenvol]

Mais um framework... onde vamos parar... mas pera... esse parece simples.

Por alguma razão me simpatizei, espero observar com mais calma.

* https://github.com/aurelia * https://ilikekillnerds.com/2015/01/aurelia-vs-angularjs-round-one-fight/ * https://scotch.io/tutorials/build-a-mini-instagram-app-with-aurelia * https://www.schoolofnet.com/curso-iniciando-com-aurelia-js/

[t-baba]

How to create your own JSON parser

#467 — December 13, 2019

Read on the Web

JavaScript Weekly

Fx 16.0: A Command-Line JSON Processing Tool — If you’ve got some files full of JSON that you want to process, Fx will slice and dice it however you want, including using JavaScript one-liners to add a bit of logic to the process.

Anton Medvedev

Preact 10.1: A Fast 3kB React Alternative with the Same API — Preact is an interesting project that often sees use in places where speed and size are of the absolute essence (Uber used it until they built their own in-house framework). New in 10.1 is support for a devtools extension and a SuspenseList component. GitHub repo.

Preact

CircleCI Config Teardown: How We Write Our Config at CircleCI — Find out how we use YAML configuration to power CircleCI - and which open source orbs (shareable packages of config) we use to speed up our pipeline.

CircleCI sponsor

20 Ways to Become a Better Node Developer in 2020 — We’re rapidly coming up on the end of the year (indeed, the next issue is our last this year) so is it time to think about New Year’s resolutions already?

Yoni Goldberg

Dr Axel's 'Deep JavaScript' Now Available — The latest book from JavaScript guru Dr. Axel (of Exploring ES6 fame) is now out. It costs money, but you can read a whole 50% of it online (or grab a PDF direct).

Dr. Axel Rauschmayer

Creating a JSON Parser with JavaScript — Sure, you could just use JSON.parse but where’s the challenge in that? This is a neat step-by-step guide on implementing a JSON parser of your own.

Tan Li Hau

Quick bytes:

Love SICP? A JavaScript adaption has been released.

Electron, the hugely popular GitHub-founded toolkit for building desktop apps on Web technologies, has joined the OpenJS Foundation.

Ember user? They're doing a 31 days of Ember addons series on their official blog.

💻 Jobs

Software Engineers, Frontend at Fictiv (San Francisco) — We bring a user friendly experience to manufacturing, making it easy to turn designs into real products. Use the latest tech and JS to iterate quickly, ensuring a rapid feedback loop between us and our customers.

Fictiv

Senior Front-End Software Engineer (Vue, Nuxt, Apollo) — Join our distributed Front-End functional team in our quest to make doctors more effective using Vue, Nuxt, Apollo and Rails.

Doximity

Find a Job Through Vettery — Make a profile, name your salary, and connect with hiring managers from top employers. Vettery is completely free for job seekers.

Vettery

📘 Articles & Tutorials

Raw WebGL: An Illustrated Guide to Starting with WebGL — A well presented tutorial on getting started with WebGL, what key data structures you need, and what each of the main elements (of which there are quite a few when it comes to WebGL!) are and do.

Alain Galvan

Relatively Formatting Times with Intl.RelativeTimeFormat — For example: new Intl.RelativeTimeFormat('en').format(-1, 'day') returns the string "1 day ago". It’s going to be part of ES2020 but you can use it in Chrome and Firefox already.

Bram van Damme

Build a Customizable Angular Data Grid in Minutes — Create an Angular data grid in under 5 minutes. You'll also find resources for building in Vue, React, and plain JavaScript.

Wijmo by GrapeCity sponsor

JavaScript Component-Level CPU Costs — Did you know that in Chrome 78+ on Linux you can actually track how many CPU instructions are used in the rendering of your components? Interesting, though advanced, performance monitoring stuff here.

Stoyan Stefanov

▶  Angular Meetup Online: Two Angular Talks — Ryan Chenkie and Kara Erickson both gave twenty minute talks on the latest in the Angular world.

This Dot Media

How to Write Correctly Typed React Components with TypeScript — React and TypeScript make a powerful pair, but if you’re just starting out, you’ll need to understand how to write correctly typed components.

Piero Borrelli

Why Does JavaScript Have -0? — Yes, there’s -0 and normal 0. They’re equal but are different objects nonetheless.

Thomas Barrasso

Inversion of Control — A simple principle that can drastically improve your reusable code.

Kent C Dodds

Realtime ≠ Request-Response: So, Why’s Google Polling Like It’s the 90s?

Ably sponsor

Reasons To Use Aurelia in 2020 — Aurelia is an interesting framework that deserves a look in a sea of competing options.

Dwayne Charrington

The npm, Yarn and Bower Timeline — The npm vs yarn story is a good demonstration of ‘competing’ tools pushing the other along.

Charlie Midtlyng

How Optional Chaining Helps to Avoid "undefined is not a function" Exceptions

Stefan Judis

🔧 Code & Tools

OpenLayers: High Performance Frontend Mapping Library — A system for putting dynamic maps onto your pages that can render map tiles pulled from various sources, vector data layers, markers, etc. Supports both Canvas and WebGL as appropriate. Examples.

OpenLayers

Visual Studio Code November 2019 Released — VS Code is perhaps the most popular editor in the JavaScript world and this release has a lot going for it, not least a new experimental WebGL renderer you can use to make the integrated terminal a lot faster. Just to show no favoritism though, Vim 8.2 just came out too ;-)

Microsoft

New Time-Travel Debugger for JavaScript and TypeScript — Move forward and backwards through your code to understand the conditions that led to a specific bug, view runtime values, edit-and-continue, and more.

Wallaby.js sponsor

simpleParallax: A Simple Way to Create Parallax Effects — A straightforward library to add parallax-style animations to any image on your page. Not always a good idea UX-wise, but the examples and code samples here certainly sell it well.

Geoffrey Signorato

5 Cloud IDEs for JavaScript Developers — I’d add Repl.it, CodeSandbox, and Glitch to this list too.

Shaumik Daityari

npkill: Find and Remove Old or Large node_modules Folders

Estefanía García Gallardo and Juan Torres Gómez

react-tabs: An Accessible and Easy Tab Component for React

React Community

⚡️ Quick Releases

Highcharts 8.0 — The charting framework.

Geolib 3.2 — Geospatial functions library.

npm 6.13.4 — The popular package manager.

react-beautiful-dnd 12.2 — Powerful drag and drop for lists in React.

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[t-baba]

YDKJS edition 2, React's concurrent mode, and Vue 3's new features

#461 — November 1, 2019

Read on the Web

JavaScript Weekly

Madge: Create Graphs From Your Module Dependencies — A developer tool for generating a visual graph of your module dependencies (works with CommonJS, AMD and ES6 modules), finding circular dependencies, and discovering other useful info.

Patrik Henningsson

Modern JavaScript Features You May Have Missed — Given how JavaScript evolves all the time, it’s often worth reflecting on what’s been added, which is why articles like this tend to be popular here 😄 This post quickly covers some highlights of the most recent standards, ES2015 through ES2019.

Jimmy Breck-McKye

Migrating a Distributed System from JavaScript to TypeScript — TypeScript can help overcome scalability issues of JavaScript. Here’s how Ably’s engineering team painlessly migrated a globally-distributed system written in JavaScript to TypeScript, and some learnings you can implement in your own migration.

Ably sponsor

You Don't Know JS Yet: Getting Started — Kyle Simpson’s “You Don’t Know JS” (a.k.a. YDKJS) book has been hugely popular in the JavaScript world since its first release five years ago. He’s been working on a second edition whose first portion is now ‘draft complete’ and you can read it on GitHub.

Kyle Simpson

React (Experimentally) Unveils Concurrent Mode — A set of much awaited, new experimental features that will help React apps stay responsive and gracefully adjust to the user’s device capabilities and network speed. Very much aimed at early adopters and the curious. Here’s why these developments are exciting.

React Team

A Look at Some Exciting New Features Coming in Vue 3 — The Vue.js Core team is bringing some exciting new features in Vue 3 (which you can see in a pre-alpha form here) such as the composition API, fragments, portals, and suspense, to name a few. Does it feel more React-like? Well, yes.

Filip Rakowski

What's Going On With CDNJS? — CDNJS is a popular CDN for open source, front-end libraries and assets, but someone noticed there have been no updates in weeks. Apparently a founder restricted access and ‘disappeared’ and things are still being sorted out (today there’s been an update posted to Hacker News by one of the founders).

cdnjs

Aurelia vNext: A 2019 Fall Update — A look at what’s coming in Aurelia 2, the next major version of what remains an interesting JavaScript framework that isn’t React, Angular, or Vue!

Rob Eisenberg

💻 Jobs

JavaScript Developer at X-Team (Remote) — Work with the world's leading brands, from anywhere. Travel the world while being part of the most energizing community of developers.

X-Team

Have You Tried Vettery? — Vettery specializes in tech roles and is completely free for job seekers. Create a profile to get started.

Vettery

📘 Articles & Tutorials

The Svelte Handbook — It’s really just a very long blog post, but nonetheless, it’s a good way to quickly learn Svelte and become familiar with the intriguing compile-time framework.

Flavio Copes

Promises: Zero To Hero, Plus Cheat Sheet — “JavaScript promises explained how I wish they were explained to me” — plus a handy cheat sheet.

Joshua Saunders

JavaScript and TypeScript Test Feedback Right in Your Editor — Wallaby runs tests and code, displaying errors and results right in your editor as you type. For Jest and Angular projects no config is required.

Wallaby.js sponsor

10 Good Practices for Building Large Vue.js Projects — As we say in the UK, pretty much “what it says on the tin.”

Nada Rifki

Encapsulation in JavaScript

Eric Elliott

How to Set Up Angular Unit Testing with Jest

Amadou Sall

What is Functional Programming? A Gentle JavaScript Intro — One for beginners or those truly new to functional concepts.

Ali Spittel

Free Download: Results from Bitmovin's Video Developer Survey 2019 — Our 2019 Video Dev Report is here - A great lens into current trends, challenges & expectations.

Bitmovin sponsor

JavaScript's 'Labeled Statements' — MDN’s docs are the best resource on the practical use of labels, but this post shows how Svelte leans on them for its own syntactic reasons.

Flavio Copes

Migrating a 50K SLOC Flow and React Native App to TypeScript — Ditching Flow for TypeScript is easier than ever and should be more future proof.

Adam Terlson

JavaScript is C — “The exact same kinds of problems I had in C, I have in JavaScript or even TypeScript today.” Yes, this is controversial, and you’ll probably disagree!

Chris Krycho

🔧 Code & Tools

vue-interactive-paycard: Credit Card Form with Smooth Interactions — This is really slick. Check out the live CodePen demo.

Muhammed Erdem

A Web Extension Starter Kit — A kit for building ‘Write Once, Run on Any Browser’ extensions via the Web Extensions API.

Abhijith Vijayan

Depcheck: A VS Code Extension That Highlights Unused Dependencies in package.json — Uses the depcheck command line tool behind the scenes to help you declutter your project.

Visual Studio Marketplace

Immer 5.0: The Immutable State Library — The popular library has introduced first class support for maps and sets.

immer

Sal: Lightweight Scroll Animation Library — Coming in at just 2.8KB, this vanilla JS library is performance focused with no dependencies. GitHub repo.

Mirosław Ciastek

A Comparison of Popular Browser Automation Tools

Taiko sponsor

Redux Starter Kit 1.0 Released — A package designed to make it easier to get started with Redux and perform common tasks.

Mark Erikson

Downshift 3.4: Primitives to Build WAI-ARIA Compliant Enhanced Input Components — “You need an autocomplete/dropdown/select and you want it to be accessible. You also want it to be simple and flexible to account for your use cases.” Now supports Preact X as well as React.

Downshift

📊 Vue-chartjs: A Vue.js Wrapper for Chart.js — Using Vue? Want charts? Consider this. Demos here.

Jakub

by via JavaScript Weekly https://ift.tt/2PD4sWX

[t-baba]

Should 'JavaScript' be rebranded?

#459 — October 18, 2019

Read on the Web

JavaScript Weekly

Should We Rebrand 'JavaScript'? — I think most of us can agree there are problems with ‘JavaScript’ as a name, but is it worth rebranding it? “JS” is certainly one option.

Kieran Potts

The Power of JSON.stringify's Extra Argument — JSON.stringify turns JavaScript objects or values into JSON strings.. no surprises there. But did you know it has a second argument that can be used to alter elements ahead of the conversion or specify which properties of an object will get stringified?

Pawel Grzybek

Get Best in Class Error Reporting for Your JavaScript Apps — Time is money. Software bugs waste both. Save time with Bugsnag. Automatically detect and diagnose errors impacting your users. Get comprehensive diagnostic reports, know immediately which errors are worth fixing, and debug in minutes. Try it free.

Bugsnag sponsor

How Vue 3 Could Enable Faster Web Applications — The key changes coming in Vue 3 (in pre-alpha here) will make both it, and your Vue.js apps, faster, smaller, and more maintainable.

Filip Rakowski

Ionic React: A Cross Platform App Building Framework — If you’re on the lookout for an interesting alternative to React Native, consider the new React-flavored version of Ionic, a popular framework (once more associated with Angular) for building iOS, Android, and desktop apps, as well as PWA webapps.

Max Lynch

Quick bytes:

The first beta of webpack 5 is out and ready for testing.

John Carmack, of DOOM and Wolfenstein 3D fame, is finding both JavaScript and React to be 'a bigger win' for VR development than he had expected.

Isaac Schlueter, the original creator of npm, has spoken about how npm Inc. might be returning to its open source roots.

One of Aurelia's core developers has been hired to work full-time on the framework.

💻 Jobs

Can You Help Our Client Migrate to Node.js? Docklands, London — Do you have experience and strong opinions on Node best practices? Come and share your advice with an engaged, friendly team of excellent software engineers.

CareersJS

JavaScript Developer at X-Team (Remote) — Work with the world's leading brands, from anywhere. Travel the world while being part of the most energizing community of developers.

X-Team

Find A Job Through Vettery — Vettery specializes in tech roles and is completely free for job seekers. Create a profile to get started.

Vettery

📘 Articles & Tutorials

▶  A Thorough Introduction to NuxtJS — You’ll need over an hour set aside for this screencast, but if you want to get a grip on the popular NuxtJS Vue framework, this covers all of the major features.

Vue Screencasts

7 Tricky JavaScript Questions (or Gotchas) — These are billed as being potential ‘interview questions’, but they’re really all about edge cases or JavaScript quirks. Interesting, but if you get asked these in an interview, it might not be a great signal 😄

Dmitri Pavlutin

A Much Faster Way to Debug Code Than with Breakpoints or console.log — Wallaby catches errors in your tests and code and displays them right in your editor as you type, making your development feedback loop more productive.

Wallaby.js sponsor

Understanding this, bind, call, and apply

Tania Rascia

How to Debug JavaScript in Microsoft Edge from Visual Studio — Note: This is aimed at ‘full fat’ Visual Studio users rather than VS Code.

Visual Studio Blog

▶  A Live Coding Talk Covering Vue 3's New Composition API — Warning.. Jason sings near the end of this fun 20 minute live coding session 😄

Jason Yu

Compiling TypeScript via webpack and babel-loader

Dr. Axel Rauschmayer

Top CI Pipeline Best Practices - A Developer's Guide

Datree.io sponsor

Object preventExtension vs seal vs freeze — These are ways to enforce different degrees of immutability on objects.

Cybertec

Promises and UI States in Ember.js

Sabin Hertanu

🔧 Code & Tools

Zero: A Plain Text, Terminal-Based 3D Graphics Rendering Pipeline — Yes, this is really just a bit of fun, but is a nice example of building up a 3D rendering engine from scratch.

sinclairzx81

Firefox’s New WebSocket Inspector — The new WebSocket inspector, part of the existing Network panel UI in DevTools, will be released in Firefox 71, but is ready for use in Firefox Developer Edition now. Here’s a look at how it works.

Mozilla Hacks

Typical: Animated Typing in ~400 Bytes of JavaScript — Written in a nice, modern, async way. Here’s a CodePen demo to play with.

Cam Wiegert

Automate and Standardize JS Code Quality — Set standards on coverage, duplication, complexity, and style issues and see real-time feedback in your Git workflow.

Codacy sponsor

Swiper: A Modern Mobile Touch Slider — Complete with hardware accelerated transitions and native-like behavior. Someone’s also made Tiny Swiper, a 2KB (gzipped) compatible clone, if you want something more lightweight.

Vladimir Kharlampidi

Popper.js: A Library to Manage the Position of 'Pop Out' Page Elements — Think things like tooltips, popovers, drop-downs..

Federico Zivolo

pretty-quick: Runs Prettier on your Changed Files — Prettier is a popular code formatter.

Lucas Azzola

WebAssembly.sh: An Online WebAssembly Terminal — An online WebAssembly Terminal to run WASI modules directly on your browser.

Aaron Turner

⚡️ Quick Releases

Vue CLI 4.0 — Vue.js's main development tool.

Rollup 1.25.0 — Popular ES module bundler.

Hexo 4.0 — Node powered blog framework.

pickr 1.4.5 — Flat, simple, themeable color picker control.

by via JavaScript Weekly https://ift.tt/2BqMKxG

[t-baba]

Using TensorFlow.js to check for naughty content client-side

#425 — February 22, 2019

Read on the Web

JavaScript Weekly

NSFW JS: A Way to Check for NSFW Images Client-Side — Billed as ‘client-side indecent content checking for the soul’, this is an interesting, though imperfect, way to screen content prior to upload. It uses TensorFlow.js behind the scenes. Demo here.

Gant Laborde

JavaScript Loading Priorities in Chrome — How browsers schedule and execute scripts can impact the performance of your pages. Addy Osmani compares the different approaches here.

Addy Osmani

Frontiers 2019: Explore New Ways to Build Apps on Slack — Teams move faster with apps on Slack. And, it wouldn’t be possible without the people who built them. Connect with app builders like you, get hands-on training and spark new ideas at Frontiers 2019.

Slack sponsor

TypeScript Linter TSLint to Give Way to ESLint — The developers of TSLint, the TypeScript linter, have decided to deprecate it and focus on improving TypeScript support in the popular ESLint linter instead. This will greatly help existing ESLint users who are picking up TypeScript.

Palantir

CodeCrumbs: Document Codebases by Adding 'Breadcrumbs' — One of those things that’s better to see visually than read about. Essentially you annotate your code in a certain way and it can produce visualizations of how your codebase works.

Bohdan Liashenko

Ionic React Now Available in Beta — Ionic, a framework for building cross-platform hybrid mobile apps, is commonly associated with Angular but now it’s available in a React flavor too with around 70 components intended to cover the main use cases when building mobile apps. — Via our Mobile-focused newsletter.

Josh Thomas (Ionic)

💻 Jobs

Sr. Fullstack Engineer (Remote) — Sticker Mule is looking for passionate developers to join our remote team. Come help us become the Internet’s best place to shop and work.

Sticker Mule

React/TypeScript Dev (Berlin, Germany) — Build the tools behind the world’s leading app retargeting platform. Make your own decisions. Solve hard, real-world problems with a cutting edge stack in an experienced & ambitious team.

Remerge

Find a Job Through Vettery — Vettery specializes in developer roles and is completely free for job seekers.

Vettery

📘 Articles, Tutorials and Opinions

for vs forEach() vs for/in vs for/of — An overview of the difference between these looping constructs using several different edge cases.

Valeri Karpov

JSConf US & The Expanding Web — Check out a recent blog by Anna Sedlar.

Big Nerd Ranch sponsor

Using Fastify and Preact for Quick Web App Prototyping — Two technologies we haven’t mentioned for quite a while come together here in building a simple full-stack app.

Luciano Mammino

Styling an Angular Application with Bootstrap — A tutorial using the latest versions of Bootstrap 4 and Angular 7.

Smashing Magazine

Working with TypeScript in Visual Studio Code — Since VS Code and TypeScript both originated at Microsoft, it’s no surprise they work well together.

James Quick beginner

How to Disallow Large Imports from JavaScript Projects — Are there known large dependencies your team wish they could disallow from a project? ESLint supports disallowing specific imports.

Addy Osmani

How Does Aurelia 'React'? — Aurelia is an interesting framework in its own right - this new series aims to show how Aurelia approaches things you might otherwise do in React.

Rob Eisenberg

Replace Tedious Coding with MongoDB Stitch and Public APIs

MongoDB sponsor

'We Migrated to Next.js to Serve Our Home Page 7.5× Faster' — Going from a basic React boilerplate to Next.js can yield serious initial render time improvements and without much work, too.

Drew Powers (Manifold)

Faster Calls with Arguments Mismatch — Technical notes on a special V8 optimization for situations where you have strict mode functions that don’t use the arguments object or rest parameters. The performance improvement can be significant.

Benedikt Meurer and Toon Verwaest (V8)

🔧 Code and Tools

VS Code Settings and Extensions for Faster JS Development

Tilo Mitra

Cryption: In-Browser AES File Encryption with Data Integrity Check — It’s limited as to the size of data it can work with, however, but is an interesting project.

Tim-Luca Lagmöller

Supercharge Your Code, Test, Debug Feedback Loop — Wallaby runs unit tests as you type and reports results right beside your code in your text editor.

Wallaby.js sponsor

SimpleFS: Handle Files in IndexedDB Like You Would in Node — Node-style file operations for files stored in IndexedDB.

Fagbokforlaget V&B AS

Cleave.js: Format Input Text Content While Typing — Ideal for things like phone numbers, credit card numbers, dates.. or define your own.

Max Huang

Howler.js: An Audio Library for the Modern Web — Get a simple API for your audio needs across all platforms. No dependencies, too.

James Simpson

A JavaScript-Interop Library for ClojureScript

Applied Science Studio

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[t-baba]

New ES2018 features worth knowing (with examples)

#419 — January 11, 2019

Read on the Web

JavaScript Weekly

FromJS: An Experimental Data-Flow Analysis Tool for Front-End JS — An interesting tool that shows you where each value in the DOM comes from - very useful for looking at how other pages work or for certain types of debugging. There’s also a blog post and video about how it works. Note: Requires Node 9 or under for now.

Matt Zeunert

New ES2018 Features Every JavaScript Developer Should Know — ES2018 wasn’t as huge a leap forward as ES6, but this post is packed with interesting examples of spread properties within object literals, asynchronous iterators and asynchronous iterables, Promise.prototype.finally, and other new features.

Faraz Kelhini

Frontiers 2019: Explore New Ways to Build Apps on Slack — Frontiers is a Slack conference exploring the future of work. In the developer track, you'll get immersive training on new functionality and hands-on workshops for app builders at all development stages. Register today for early bird pricing.

Slack sponsor

Node and JavaScript Testing Best Practices — A well presented collection of 30 best practices for better JavaScript testing, continuous integration, and overall quality.

Yoni Goldberg

2018 JavaScript Rising Stars — An annual roundup of which JavaScript projects did well in terms of GitHub stars over the prior year in various categories. It’s a bit of a popularity contest but it’s nice to get a feel for what’s going on.

Michael Rambeau

Anime.js 3.0: A JS Animation Library for the Web — A mature and powerful animation library takes another step forward with a new site, new documentation and examples, new easings, new callbacks, and more.

Julian Garnier

GitHub Announces Unlimited Free Private Repos — A late Christmas present comes from GitHub in the shape of their free offering now including unlimited private repositories (something that previously cost $7/mo) with a limit of three collaborators per repo. For balance, GitLab’s CEO had a response.

GitHub

💻 Jobs

Senior Web Developer at Dr. Bill (Remote OK) — Dr. Bill helps Canadian doctors save time by streamlining their billing. Help lead our team into the next phase of growth.

Dr. Bill

JavaScript/Node Developer - Brighton UK — Growing new-product team, modern JavaScript tools and data-driven innovation. Flexible working and a fierce commitment to L&D.

Madgex

Find A Job Through Vettery — Vettery matches top tech talent with growing companies. Create your profile to get started.

Vettery

📘 News, Tutorials and Opinions

Defensive JavaScript — “How to write code that doesn’t do what it oughtn’t”

Mike Samuel (Google)

How Do Top Developers Deliver Video? - Download the 2018 Video Report — Hundreds of developers around the world reveal their preferred video streaming solutions.

Bitmovin sponsor

Setting a React Project From Scratch Using Babel and Webpack

Anshul Goyal

A Look at TypeScript 2.8's Conditional Types — An intro to conditional types, a powerful addition to the type system introduced in TypeScript 2.8.

Marius Schulz

10 Best Tips for Learning Vue from Vue Masters — 6 Vue experts talk about what they wish they would have known when first starting out.

Gregg Pollack

So Many Ways to Learn Kotlin - Which Is Right for You?

Big Nerd Ranch sponsor

Things Dan Abramov Doesn’t Know — React core team member and the creator of Redux wants you to realize that “even your favorite developers may not know many things that you know” and shares his own list of blind spots.

Dan Abramov

Aurelia 2018 Year in Review — Not just a look back but a look at what’s happening this year too with the component-oriented client framework.

Rob Eisenberg

🔧 Code and Tools

DoneJS 3 Released — DoneJS is a framework for building high performance, real-time web and mobile apps and version 3 aims to provide ‘best in class server-side rendering’.

Matthew Phillips

Libraries To Help You Work with WebGL — Working with WebGL directly can get very verbose and technical quickly, but luckily there are libraries and toolkits to make it easier.

Arek Nawo

A Much Faster Way to Debug Code Than with Breakpoints or console.log — Wallaby catches errors in your tests and displays the results of expressions right in your editor as you type.

Wallaby.js sponsor

music-fns: Music Notation-Related JavaScript Functions — For things like working with note names, octaves, frequency, intervals, and scales.

madewithlove

Karin: A Promise Based HTTP Client That Uses Template Literals — Currently an experiment/work in progress. Uses the Fetch API under the hood.

Vahe

HotKeys.js: A Robust Library for Capturing Keyboard Input

Kenny Wong

Vue Glide: A Vue Component for the Glide.js Slider/Carousel

Anton Reshetov

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[udemy-gift-coupon-blog]

Aurelia JS - Create Mobile Apps using Aurelia JS ##freetutorials ##UdemyDiscount #Apps #Aurelia #Create #JS #Mobile Aurelia JS - Create Mobile Apps using Aurelia JS Aurelia is a JavaScript client framework for web, mobile and desktop. It allows you to write clean, modular JavaScript. The framework follows simple conventions and is focused on web standards. Through these tutorials we shall learn about web and mobile app development using open source UI framework Aurelia JS. The training will include: Introduction and Overview of AureliaJS Environmental SetUp Application Structure ES6 and ES7 Components of Aurelia Application Component Life Cycle Data Binding Custom Elements Dependency Injections Basic Configuration Binding Behavior Plugins Converters Events Event Aggregator Forms HTTP Refs Routing Life Cycle Routing Implementation History Animations Dialog Localization Tools Bundling Debugging Community Best Practices Sample Project description – An Aurelia sample app that lets you browse and edit contacts. Who this course is for: Web developers Students Someone who wants to learn about Aurelia framework 👉 Activate Udemy Coupon 👈 Free Tutorials Udemy Review Real Discount Udemy Free Courses Udemy Coupon Udemy Francais Coupon Udemy gratuit Coursera and Edx ELearningFree Course Free Online Training Udemy Udemy Free Coupons Udemy Free Discount Coupons Udemy Online Course Udemy Online Training 100% FREE Udemy Discount Coupons https://www.couponudemy.com/blog/aurelia-js-create-mobile-apps-using-aurelia-js-2/

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D3.js 5.0, and an introduction to functional programming in JS

#378 — March 23, 2018

Read on the Web

JavaScript Weekly

D3.js 5.0 Released — D3 continues to be a fantastic choice for data visualization with JavaScript. Changes in 5.0 include using promises to load data instead of callbacks, contour plots, and density contours.

Mike Bostock

Lazy Loading Modules with ConditionerJS — Linking JavaScript functionality to DOM elements can become a tedious task. See how ConditionerJS makes progressive enhancement easier in this thorough tutorial.

Smashing Magazine

The Best JavaScript Debugging Tools for 2018 — If you work with JavaScript, you’ll know that it doesn’t always play nice. Here we look at the best JavaScript debugging tools you can use to clean up your code and provide great software experiences to your users.

RAYGUN sponsor

▶  A 10 Video Introduction to Functional JavaScript with Ramda — Want to get started with functional programming in JavaScript? Ramda is a more functional alternative to libraries like Lodash, and these brief videos cover the essentials. You may also appreciate Kyle Simpson’s Functional-Light JavaScript if you set off on the functional programming journey.

James Moore

JavaScript vs. TypeScript vs. ReasonML: Pros and Cons — Dr. Axel is becoming a fan of static typing for larger projects and explains the pros and cons of it and how static typing relates to the TypeScript and ReasonML projects.

Dr. Axel Rauschmayer

A Proposal for Package Name Maps for ES Modules — Or how to solve the web’s “bare import specifier” problem.

Domenic Denicola

A TC39 Proposal for Object.fromEntries — It would transform a list of key/value pairs into an object.

TC39 news

How Unsplash Gradually Migrated to TypeScript

Oliver Joseph Ash

💻 Jobs

Engineering Manager — You’ll lead a team in building a product at scale and get the opportunity to manage and mentor while helping shape decisions.

Skillshare

Software Engineer at Fat Lama (London) — Technology and engineering is at the heart of what we do at Fat Lama - help us build the rental marketplace for everything.

Fat Lama

JavaScript Expert? Sign Up for Vettery — Create your profile and we’ll connect you with top companies looking for talented front-end developers.

Vettery

Place your own job listing in a future issue

📘 Tutorials & Tips

Getting Started with the Web MIDI API — Covers the basics of MIDI and the Web MIDI API showing how simple it is to create frontend apps that respond to musical inputs. It’s niche but also neat the Web platform can do this.

Peter Anglea

▶  7 Secret Patterns Vue Consultants Don&'t Want You to Know — Clickbaity talk title, but Chris is both on the Vue core team and a great speaker :-)

Chris Fritz

Learn to Build JavaScript Apps with MongoDB in M101JS, MongoDB for Node Developers — MongoDB University courses are free and give you everything you need to know about MongoDB.

MongoDB sponsor

How to Write Powerful Schemas in JavaScript — An introduction to schm, a library for building model schemas in a functional, composable way.

Diego Haz

Getting Smaller Lodash Bundles with Webpack and Babel — Plus some tips for working with lodash-webpack-plugin.

Nolan Lawson

Elegant Patterns in Modern JavaScript: RORO — RORO stands for Receive an Object, Return an Object.

Bill Sourour

The Ultimate Angular CLI Reference Guide — Create new Angular 2+ apps, scaffold components, run tests, build for production, and more.

Jurgen Van de Moere

▶  Add ESLint and Prettier to VS Code for 'Create React App' Apps

Elijah Manor

Tips for Using ESLint in a Legacy Codebase — Techniques that can help you significantly reduce the number of errors you see.

Sheshbabu Chinnakonda

Free eBook: A Roundup of Managed Kubernetes Platforms

Codeship sponsor

Lookaheads (and Lookbehinds) in JS Regular Expressions

Stefan Judis

Unblocking Clipboard Access in Chrome 66+ — The Async Clipboard API supersedes the document.execCommand approach.

Jason Miller

Building Office 365/SharePoint Applications with Aurelia

Magnus Danielson

🔧 Code and Tools

GPU-Accelerated Neural Networks in JavaScript — A look at four libraries providing this type of functionality.

Sebastian Kwiatkowski

Get the Best, Most Complete Collection of Angular UI Controls: Wijmo — Wijmo’s dependency-free UI controls include rich declarative markup, full IntelliSense, and the best data grid.

GrapeCity Wijmo sponsor

better-sqlite3: A Simple, Fast SQLite3 Library for Node

Joshua Wise

ngx-datatable: A Feature-Rich Data-Table Component for Angular — No external dependencies. Demos here.

Swimlane

vue-content-loader: SVG-based 'Loading Placeholder' Component — It’s a port of ReactContentLoader.

EGOIST

DrawerJS: A Customizable HTML Canvas Drawing Tool — Live demo.

Carsten Schäfer

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Aurelia JS - Create Mobile Apps using Aurelia JS ##Coursera ##FutureLearn ##Udacity #Apps #Aurelia #Create #JS #Mobile Description Aurelia is a JavaScript shopper framework for net, cell and desktop. It means that you can write clear, modular JavaScript. The framework follows easy conventions and is concentrated on net requirements. Through these tutorials we will study net and cell app growth using open supply UI framework Aurelia JS. The coaching will embrace: Introduction and Overview of AureliaJS Environmental SetUp Application Structure ES6 and ES7 Components of Aurelia Application Component Life Cycle Data Binding Custom Elements Dependency Injections Basic Configuration Binding Behavior Plugins Converters Events Event Aggregator Forms HTTP Refs Routing Life Cycle Routing Implementation History Animations Dialog Localization Tools Bundling Debugging Community Best Practices Sample Project description – An Aurelia pattern app that allows you to browse and edit contacts. Who is the target market? Web builders Students Someone who desires to study Aurelia framework 👉 Activate Udemy Coupon 👈 Free Tutorials Udemy Review Real Discount Udemy Free Courses Udemy Coupon Udemy Francais Coupon Udemy gratuit Coursera and Edx ELearningFree Course Free Online Training Udemy Udemy Free Coupons Udemy Free Discount Coupons Udemy Online Course Udemy Online Training 100% FREE Udemy Discount Coupons https://www.couponudemy.com/blog/aurelia-js-create-mobile-apps-using-aurelia-js/

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13 Games in Under 13KB of JavaScript

#407 — October 12, 2018

Read on the Web

JavaScript Weekly

Calls Between JavaScript and WebAssembly Are Finally Fast — JavaScript is fast. WebAssembly is fast. But the interoperability between the two is where things can lag a little. In the latest Firefox, this has changed, and here’s an amazingly accessible writeup of the how and why. You will learn something here.

Lin Clark

13 Games in Under 13KB of JavaScript — A look at some of GitHub’s favorite entries to the recent js13kGames 2018 competition where you have to build a game in under 13 kilobytes, assets and all.

GitHub

Level Up Your JavaScript Error Monitoring 🚀 — Identify impactful errors at a glance. Sort errors by event count or users impacted to find ones that occur most frequently or affect a large segment of users. Get to the root cause of errors quickly with automatic diagnostic collection. Try it free.

Bugsnag sponsor

Rethinking Unit Test Assertions — “Well written automated tests always act as a good bug report when they fail, but few developers spend time to think about what information a good bug report needs.”

Eric Elliott

▶  What’s New in Create React App 2.0: A Video Series — Create React App 2.0 is only a week old, but Elijah Manor has already put together a set of handy, brief videos on using it for egghead.io.

Elijah Manor

Ways to Eliminate Common React Performance Issues — A pragmatic step-by-step guide to eliminating common React-related performance issues. And if you like this, hop over to our React-specific newsletter for more :-)

Ohans Emmanuel

The ARM Instruction Set Now Includes JavaScript-Focused Optimizations — The iPhone XS is already trumping even the iMac Pro on a particular JS benchmark, and it looks set to go further.. Interesting times! (Very) technical details here.

John Gruber

💻 Jobs

Senior Full-Stack JavaScript Engineer — Small, smart teams, challenging work, modern tech, great benefits, and a carefully curated emoji library. 100% Remote.

SITEPEN

Platform Engineer - React, GraphQL & Node.js (NYC) — Bustle is seeking engineers to help us build a world-class serverless publishing platform at a mind-boggling scale.

Bustle Digital Group

Join Our Career Marketplace & Get Matched With A Job You Love — Through Hired, software engineers have transparency into salary offers, competing opportunities, and job details.

Hired

📘 Articles & Tutorials

Isaac Z. Schleuter on the Node + JS Foundation Merger — The creator of npm shares his excitement about the recently announced merger.

The npm Blog

Dockerizing Java Apps with CircleCI and Jib — The evolution of deployment platforms and orchestration engines has been a tremendous accelerant for application and infrastructure teams alike.

CircleCI sponsor

Getting Started with Nuxt.js — Nuxt.js is a framework for creating universal (both front-end and back-end) Vue.js-powered apps.

Nosa Obaseki

What You Need to Know About Vue CLI 3 — Vue CLI provides a standard build toolchain for Vue.js apps.

Alex Kyriakidis

Using Nested Forms in Angular 6

Neel Bhatt

How to Create Custom Angular Pipes and Dynamic Locales

Michael Karén

Build a Text-To-Speech Chat App with Amazon Polly — Accessibility shouldn’t be overlooked. Allow chat users to play chat messages with natural language.

ChatEngine sponsor

Taming this in JavaScript with the Bind 'Operator' — A pretty complete tutorial on a JavaScript feature that doesn’t exist yet, though the author hopes it will help champion its case and hopes you’ll star its proposal. See what you think.

Willian Martins

My Serverless Adventure — A JavaScript developer shares his initial experiences, pitfalls, best practices, and tips for building serverlessly using AWS Lambda and the Serverless framework.

Mateo Karadza

🔧 Code and Tools

JavaScript Visualizer — A tool for visualizing execution contexts, hoisting, closures, and scopes in the browser.

Tyler McGinnis

InfluxDays: The Only Event Focused on the Impact of Time Series Data

InfluxData sponsor

Aurelia CLI 1.0 Beta 1: Now with an Auto-Tracing Bundler — At 4 years old, Aurelia, a next-gen client app framework, continues to innovate both with a new bundler and vNext, a raft of ideas to improve the framework under the hood.

Chunpeng Huo

Muze: Build Composable Data Visualizations for the Web — Composable, can be themed with CSS, supports dynamic binding for tooltips and other ‘reactions’, stackable layouts..

Charts.com

mb: Exception-Free Nested Nullable Attribute Accessor — It’s literally 51 bytes of code. Figure out how it works for a fun exercise.

Burak Can

Flatbush: Fast Static Spatial Index for 2D Points and Rects — We first linked this several months ago but a new version is now out.

Vladimir Agafonkin

BBob: Fast, Pure JavaScript BBCode Transforming and Parsing — BBCode is a text markup format commonly used on forums and wikis.

Nikolay Kostyurin

Walt: A JS-Like Syntax for the WebAssembly Text Format — An in-progress experiment for using a JS-inspired alternative syntax for WebAssembly to write to as ‘close to the metal’ as possible.

Arthur Buldauskas

Ember 3.4 Released

The Ember Team

🗓 Upcoming JavaScript Events

jsMobileConf (Oct 25-26 in Boston, MA) — A two-day, two-track, developer event focused on mobility and the cutting-edge JavaScript ecosystem.

ffconf (Nov 8-9 in Brighton, England) — A one day event (but repeated on two consecutive days) that's popular amongst front-end developers in the UK and historically attracts some amazing talks.

CascadiaJS (Nov 15-16 in Seattle, WA)

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