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holytheoristtastemaker · 5 years ago

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Disclaimer: I’m writing about my experience with major OS (Windows 10, macOs High/Sierra, Ubuntu/Manjaro) using a Solid State Drive. It has a huge impact in term of speed and it could be different from your own experience.

Hello there. To begin with, this post isn’t about what’s the best OS for everyday programming, it could depend on the stack used, Misc programs and specially YOU, so i’ll try to describe all the good/bad things that happened during my everyday workflows.

But before that I should let you know my programming stack so you won't get confused later. I mainly use:

PHP frameworks and CMS

nodejs frameworks for frontend

react native/ionic for mobile dev

Photoshop (with CssHat) for HTML Integration, banner for mobile apps.

ms office due to my current job.[1]

Ubuntu (Unity/Gnome):

By the end of 2015 and after a good run with Windows 7 and using Ubuntu just occasionally in virtual machines I thought I would give it a shot with a daily usage so I installed the 15.10 version. back then i was programming in PHP, Java and C# (because of my Software engineering Studies), php and apache had great performances locally, same for java but used a windows 7 VM for Visual Studio, Ms Office and Adobe Photoshop, because all the alternatives (Darkable/Gimp, Open office) weren't at the same levels. I tried but the more you use them the more you notice their weak points such as ease of use, backward compatibility.

I had a good (exactly 2 years) run switching between Unity and Gnome DE (I was the n°1 hater for KDE btw), but over time and even with SSD it felt a kinda slow (I was always stuck with 16.04 LTS) and honestly, I wasn’t fan of the Ubuntu’s PPAs either and then I discovered the Hackintosh community.

macOs (10.12/10.14)

So after a hell of an installation process I managed to run macOs Sierra smoothly on a laptop that has hardware near to macbook pro late 2012 (HP elitebook 840 G1). Apps installed with one simple drag n’ drop (applies to android studio too). It run the Android Virtual Device smoother than windows 7 and ubuntu with the same laptop, i was very surprised, the memory management, the apps integration and the overall stability was so great. At that time I finished my studies so no more Java or .Net programming, and the adobe/ms office suite was a strong point compared to Linux in general so every program ran natively without the need of any VM, with our beloved Unix cli.

The only drawback I had with mac, or with hackintosh, is the system updates/upgrades it was so painful to do it breaks your system every time, I was backing up the whole bootable system image whenever I attempted to update. Because the Kexts (Kernel extensions or “drivers”) weren’t always backward compatible.

So in the end i was thinking to go back to linux again but not sure which distribution i will stick with again, I wanted a stable distro that i forgot completely about something called upgrades of “big updates”. In the meantime I give Windows 10 another shot after hearing it got better and better in the last years.

And again, after 2 years with no workflow complaints I backed up my hackintosh installation and installed the last build of windows 10.

Windows 10.

I’ll resume my experience with one line: “not great, not terrible” Compared, again, to mac os the system was very smooth in every way, snapping windows, switching virtual desktops, programs and files search in the start menu, no problem but! I already missed the unix cli. Yeah I know there’s cmder and other tools. The overall performance was okay but there was some latency when compiling node js apps. My workflow didn’t change. I used Laragon for all my php projects with phpstorm and it was perfect honestly. On the other hand Android Emulator was terrible even with 8gb or ram and ssd, mac os was handling it way better.

In the meantime I played with some linux distros in VMs and made the choice: Manjaro, KDE flavor.

Manjaro:

“You said you hated KDE right?” well yes but for a cause, one I didn’t want to bring back the Gnome memories i had with Ubuntu and second, I disliked is because its similarity in UI compared to Windows in general, 10 specially then I found how very customizable was and again i’ll resume it with one line: “everything is a widget”. So in term of UI I made my simple comfortable setup.

Now in term of programs and workflow I still use PhpStorm for my php and nodejs projects, npm and yarn installed globally and surprisingly npm run very fast compared to windows and mac; git already installed, but for my php projects I migrate all of them to docker with docker compose, majority of projects were based on Laravel, Prestashop, Wordpress and old native php apps. I managed to dockerize some of them from scratch, some with Laradock.

Java/.Net: RIP.

For mobile development there were some struggles during configuring ionic and react native’s first run but done with them quickly, no problem with android studio but the emulator “again” wasn’t that good as mac os, but not that bad like windows. And I discovered a helpful package that cast my connected android device to my screen and it’s shown as a virtual device but a physical one, called scrcpy from the genymotion team!

And finally these are just some of the benefits why I picked manjaro:

No big breaking updates.

A rolling release distro.

Fast security patches.

The Great Arch User Repository (AUR)

Snap and Flatpak support (but why?)

Very stable.

But still there are some drawback, linux’s ones in general:

Still needing photoshop and lightroom.

Ms Office for work purpose (Managed to use Web version since we have ms365 but still miss Excel for heavy use)

Conclusion:

Finally and personally I’ll stick with linux for these main two reasons: native support for docker (future projects could be deployed with it) and the unix environment similarity to production servers (cli, ssh and packages’ configuration). I understand many of you will disagree for many things said in the post but that’s okay! because, finally, we choose what will help us to give the most of us in terms of productivity.

Thank you all for reading the most boring post ever made on Dev.to platform! I would gladly hear from you some of your thoughts and experiences as well. Thanks again! [1]

[1]: edit. added used stack and a conclusion.

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t-baba · 6 years ago

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An Introduction to Gulp.js

Developers spend precious little time coding. Even if we ignore irritating meetings, much of the job involves basic tasks which can sap your working day:

generating HTML from templates and content files

compressing new and modified images

compiling Sass to CSS code

removing console and debugger statements from scripts

transpiling ES6 to cross-browser–compatible ES5 code

code linting and validation

concatenating and minifying CSS and JavaScript files

deploying files to development, staging and production servers.

Tasks must be repeated every time you make a change. You may start with good intentions, but the most infallible developer will forget to compress an image or two. Over time, pre-production tasks become increasingly arduous and time-consuming; you'll dread the inevitable content and template changes. It's mind-numbing, repetitive work. Wouldn’t it be better to spend your time on more profitable jobs?

If so, you need a task runner or build process.

That Sounds Scarily Complicated!

Creating a build process will take time. It's more complex than performing each task manually, but over the long term, you’ll save hours of effort, reduce human error and save your sanity. Adopt a pragmatic approach:

Automate the most frustrating tasks first.

Try not to over-complicate your build process. An hour or two is more than enough for the initial setup.

Choose task runner software and stick with it for a while. Don't switch to another option on a whim.

Some of the tools and concepts may be new to you, but take a deep breath and concentrate on one thing at a time.

Task Runners: the Options

Build tools such as GNU Make have been available for decades, but web-specific task runners are a relatively new phenomenon. The first to achieve critical mass was Grunt — a Node.js task runner which used plugins controlled (originally) by a JSON configuration file. Grunt was hugely successful, but there were a number of issues:

Grunt required plugins for basic functionality such as file watching.

Grunt plugins often performed multiple tasks, which made customisation more awkward.

JSON configuration could become unwieldy for all but the most basic tasks.

Tasks could run slowly because Grunt saved files between every processing step.

Many issues were addressed in later editions, but Gulp had already arrived and offered a number of improvements:

Features such as file watching were built in.

Gulp plugins were (mostly) designed to do a single job.

Gulp used JavaScript configuration code that was less verbose, easier to read, simpler to modify, and provided better flexibility.

Gulp was faster because it uses Node.js streams to pass data through a series of piped plugins. Files were only written at the end of the task.

Of course, Gulp itself isn't perfect, and new task runners such as Broccoli.js, Brunch and webpack have also been competing for developer attention. More recently, npm itself has been touted as a simpler option. All have their pros and cons, but Gulp remains the favorite and is currently used by more than 40% of web developers.

Gulp requires Node.js, but while some JavaScript knowledge is beneficial, developers from all web programming faiths will find it useful.

What About Gulp 4?

This tutorial describes how to use Gulp 3 — the most recent release version at the time of writing. Gulp 4 has been in development for some time but remains a beta product. It's possible to use or switch to Gulp 4, but I recommend sticking with version 3 until the final release.

Step 1: Install Node.js

Node.js can be downloaded for Windows, macOS and Linux from nodejs.org/download/. There are various options for installing from binaries, package managers and docker images, and full instructions are available.

Note for Windows users: Node.js and Gulp run on Windows, but some plugins may not install or run if they depend on native Linux binaries such as image compression libraries. One option for Windows 10 users is the new bash command-line, which solves many issues.

Once installed, open a command prompt and enter:

node -v

This reveals the version number. You're about to make heavy use of npm — the Node.js package manager which is used to install modules. Examine its version number:

npm -v

Note for Linux users: Node.js modules can be installed globally so they’re available throughout your system. However, most users will not have permission to write to the global directories unless npm commands are prefixed with sudo. There are a number of options to fix npm permissions and tools such as nvm can help, but I often change the default directory. For example, on Ubuntu/Debian-based platforms:

cd ~ mkdir .node_modules_global npm config set prefix=$HOME/.node_modules_global npm install npm -g

Then add the following line to the end of ~/.bashrc:

export PATH="$HOME/.node_modules_global/bin:$PATH"

Finally, update with this:

source ~/.bashrc

Step 2: Install Gulp Globally

Install Gulp command-line interface globally so the gulp command can be run from any project folder:

npm install gulp-cli -g

Verify Gulp has installed with this:

gulp -v

Step 3: Configure Your Project

Note for Node.js projects: you can skip this step if you already have a package.json configuration file.

Presume you have a new or pre-existing project in the folder project1. Navigate to this folder and initialize it with npm:

cd project1 npm init

You’ll be asked a series of questions. Enter a value or hit Return to accept defaults. A package.json file will be created on completion which stores your npm configuration settings.

Note for Git users: Node.js installs modules to a node_modules folder. You should add this to your .gitignore file to ensure they’re not committed to your repository. When deploying the project to another PC, you can run npm install to restore them.

For the remainder of this article, we'll presume your project folder contains the following sub-folders:

src folder: preprocessed source files

This contains further sub-folders:

html - HTML source files and templates

images — the original uncompressed images

js — multiple preprocessed script files

scss — multiple preprocessed Sass .scss files

build folder: compiled/processed files

Gulp will create files and create sub-folders as necessary:

html — compiled static HTML files

images — compressed images

js — a single concatenated and minified JavaScript file

css — a single compiled and minified CSS file

Your project will almost certainly be different but this structure is used for the examples below.

Tip: If you're on a Unix-based system and you just want to follow along with the tutorial, you can recreate the folder structure with the following command:

mkdir -p src/{html,images,js,scss} build/{html,images,js,css}

Step 4: Install Gulp Locally

You can now install Gulp in your project folder using the command:

npm install gulp --save-dev

This installs Gulp as a development dependency and the "devDependencies" section of package.json is updated accordingly. We’ll presume Gulp and all plugins are development dependencies for the remainder of this tutorial.

Alternative Deployment Options

Development dependencies are not installed when the NODE_ENV environment variable is set to production on your operating system. You would normally do this on your live server with the Mac/Linux command:

export NODE_ENV=production

Or on Windows:

set NODE_ENV=production

This tutorial presumes your assets will be compiled to the build folder and committed to your Git repository or uploaded directly to the server. However, it may be preferable to build assets on the live server if you want to change the way they are created. For example, HTML, CSS and JavaScript files are minified on production but not development environments. In that case, use the --save option for Gulp and all plugins, i.e.

npm install gulp --save

This sets Gulp as an application dependency in the "dependencies" section of package.json. It will be installed when you enter npm install and can be run wherever the project is deployed. You can remove the build folder from your repository since the files can be created on any platform when required.

Step 4: Create a Gulp Configuration File

Create a new gulpfile.js configuration file in the root of your project folder. Add some basic code to get started:

// Gulp.js configuration var // modules gulp = require('gulp'), // development mode? devBuild = (process.env.NODE_ENV !== 'production'), // folders folder = { src: 'src/', build: 'build/' } ;

This references the Gulp module, sets a devBuild variable to true when running in development (or non-production mode) and defines the source and build folder locations.

ES6 note: ES5-compatible JavaScript code is provided in this tutorial. This will work for all versions of Gulp and Node.js with or without the --harmony flag. Most ES6 features are supported in Node 6 and above so feel free to use arrow functions, let, const, etc. if you're using a recent version.

gulpfile.js won't do anything yet because you need to …

Step 5: Create Gulp Tasks

On its own, Gulp does nothing. You must:

install Gulp plugins, and

write tasks which utilize those plugins to do something useful.

It's possible to write your own plugins but, since almost 3,000 are available, it's unlikely you'll ever need to. You can search using Gulp's own directory at gulpjs.com/plugins/, on npmjs.com, or search "gulp something" to harness the mighty power of Google.

Gulp provides three primary task methods:

gulp.task — defines a new task with a name, optional array of dependencies and a function.

gulp.src — sets the folder where source files are located.

gulp.dest — sets the destination folder where build files will be placed.

Any number of plugin calls are set with pipe between the .src and .dest.

The post An Introduction to Gulp.js appeared first on SitePoint.

by Craig Buckler via SitePoint http://bit.ly/2PBh4vG

#CSS3 #HTML5 Branding #HTML5 Weekly #HTMLl5 demos #Javascript Branding #Javascript Weekly #Mobile #Mo

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mbaljeetsingh · 6 years ago

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Setting Up a Node Project With Typescript

Node, a run-time environment that makes it possible to write server-side JavaScript, has gained a lot of adoption since its release in 2011. Writing server-side JavaScript is incredible but can get messy as the codebase grows, owing to the nature of the JavaScript language; dynamic and weak typed.

Developers coming to JavaScript from other languages often complain about its lack of strong static typing; this is where TypeScript comes into the picture, to bridge this gap.

TypeScript is a typed (optional) super-set of JavaScript that can make it easier to build and manage large-scale JavaScript projects. It can be thought of as JavaScript with additional features such as strong static typing, compilation and object oriented programming etc.

Note: TypeScript being a super-set of JavaScript means that all JavaScript code is valid TypeScript code.

Here are some benefits of using TypeScript:

Optional static typing.

Type inference.

Ability to use Interfaces.

This tutorial will primarily teach you to set up a Node project with TypeScript. We will build a simple Express application using TypeScript and transpile it down to neat, reliable JavaScript code.

Let’s begin!

Prerequisites

This tutorial assumes a basic knowledge of Node

Setting up

In this section, we will go over the setup and configuration required to enable our computer to run a simple Node application using TypeScript.

Installing Node

This step is only necessary if you do not already have Node installed on your machine. If you do feel free to skip.

Let’s begin by installing the Node run-time on our machine. If you are on a Debian or Ubuntu distro of Linux, fire up a new instance of the terminal and run the following commands:

$ curl -sL https://deb.nodesource.com/setup_10.x | sudo -E bash - $ sudo apt-get install -y nodejs

You will need curl installed on your machine to run the first command. Curl is a command-line tool for transferring data using various protocols.

If you are on a different operating system, head over here for Node installation instructions.

Once the installation is complete, we can confirm that it was successful by checking the Node and Npm versions installed:

$ node -v $ npm -v

At the time of writing this article, the stable versions for Node and Npm are 10.15.1 and 6.7.0 respectively.

Initializing an Npm project

Now that we have Node and Npm installed, we will create a new folder for our project and initialize it as an Npm project:

$ mkdir node_project $ cd node_project $ npm init

Note: After running npm init, you will need to supply Npm with information about your project. However, if you'd rather let Npm guess sensible defaults then you can add the y flag: npm init -y

Installing Dependencies

We have successfully initialized a bare Npm project but haven’t installed the dependencies required to runTypescript. Navigate into the project directory we just created and run the following commands on the terminal:

$ npm install -D typescript $ npm install -D tslint

The -D flag is the shortcut for: --save-dev. You can learn more about this here.

Wonderful, now we need to install the Express framework:

$ npm install express -S $ npm install @types/express -D

The second command above installs the Express types. We need this package because TypeScript and Express are independent packages hence there is no way for TypeScript to know about the types of Express classes.

Types in TypeScript are files, normally with an extension of .d.ts*, used to provide type information about an API, in our case Express.

Configuring TypeScript

In this section, we will setup TypeScript and configure linting for TypeScript. TypeScript uses the tsconfig.json file to configure the compiler options for a project. Create a tsconfig.json file in the root of the project directory and paste in the following snippet:

{ "compilerOptions": { "module": "commonjs", "esModuleInterop": true, "target": "es6", "moduleResolution": "node", "sourceMap": true, "outDir": "dist" }, "lib": ["es2015"] }

Let’s go over some of the keys in the JSON snippet above and see what they do:

module : Specifies the module code generation method. Node uses commonjs.

target: Specifies the output language level.

moduleResolution: This helps the compiler figure out what an import refers to. The Valuenode mimics the Node module resolution mechanism.

outDir: This is the location to output .js files after transpilation. We save it as dist.

ProTip: An alternative to manually creating and populating the tsconfig.json file is running: tsc --init. This command will generate a nicely commented tsconfig.json file. To learn more about the key value options available, check out the official TypeScript documentation.

Let’s now configure TypeScript linting for the project. In a terminal that is pointed to the root of our project’s directory, run the following command to generate a tslint.json file:

$ ./node_modules/.bin/tslint --init

Open the newly generated tslint.json file and add the no-console rule accordingly:

{ "defaultSeverity": "error", "extends": ["tslint:recommended"], "jsRules": {}, "rules": { "no-console": false }, "rulesDirectory": [] }

By default, the Typescript linter prevents the use of our favorite debugger, console, hence the need to explicitly tell the linter to revoke its default no-console rule.

Updating the Package.json file

At this point in the tutorial, we can either directly run functions in the terminal or create an 'npm script' to neatly run them for us. Let’s go with the latter, we will make a “start” script that compiles and transpiles the TypeScript code, then runs the resulting .js application.

Open the package.json file and update it accordingly:

{ "name": "node-with-ts", "version": "1.0.0", "description": "", "main": "dist/app.js", "scripts": { "start": "tsc && node dist/app.js", "test": "echo \"Error: no test specified\" && exit 1" }, "author": "", "license": "ISC", "devDependencies": { "@types/express": "^4.16.1", "tslint": "^5.12.1", "typescript": "^3.3.3" }, "dependencies": { "express": "^4.16.4" } }

In the snippet above, we updated the main path and added the start command to the 'npm scripts.' Taking a close look at the start command, we are first running the tsc command and then the node command. This will enable us to compile and run the generated output with node.

NOTE: The tsc command tells TypeScript to compile the application and place the generated .js output in the specified outDir directory as it is set in the tsconfig.json file.

Setting Up The Folder Structure

We will create a src folder in the root of our project directory and then create a file called app.ts within it:

$ mkdir src $ cd src $ touch app.ts

At this point, we should have a folder structure that looks like this:

├── node_modules/ ├── src/ ├── app.ts ├── package-lock.json ├── package.json ├── tsconfig.json ├── tslint.json

Creating and Running a Basic Express Server

Now that we’ve configured TypeScript and its linter, we will build a basic Node Express Server. Open up the app.ts file and paste in the following code snippet:

import express from 'express'; const app = express(); const port = 3000; app.get('/', (req, res) => { res.send('The sedulous hyena ate the antelope!'); }); app.listen(port, err => { if (err) { return console.error(err); } return console.log(`server is listening on ${port}`); });

The code above describes a basic Node Server which simply listens on the port 3000 for requests. Let’s run the app using the following command:

$ npm start

If it runs successfully, we get a message logged to the terminal “server is listening on 3000.” Now we can visit_ _http://localhost:3000 on the browser and we will see this message “The sedulous hyena ate the antelope!”

We can now open the dist/app.js file and we will find the transpiled version of the TypeScript code:

"use strict"; var __importDefault = (this && this.__importDefault) || function (mod) { return (mod && mod.__esModule) ? mod : { "default": mod }; }; Object.defineProperty(exports, "__esModule", { value: true }); const express_1 = __importDefault(require("express")); const app = express_1.default(); const port = 3000; app.get('/', (req, res) => { res.send('The sedulous hyena ate the antelope!'); }); app.listen(port, err => { if (err) { return console.error(err); } return console.log(`server is listening on ${port}`); }); //# sourceMappingURL=app.js.map

Awesome, you have successsfully set up your Node project to use TypeScript!

Conclusion

In this tutorial, we went over a few reasons that make TypeScript important to writing reliable JavaScript code. We also looked at some benefits of working with TypeScript.

Finally, we followed simple steps and learnt how to set up a Node project with TypeScript.

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robertbryantblog · 6 years ago

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vertcoinreddit · 8 years ago

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I recently set up a P2Pool Node on a Linux VPS but I was a little confused on how to do it. Here's my node: http://ift.tt/2jcpqux After stitching together a few guides, I finally managed to do it - so I'll share it with you :)First of all login to your VPS with SSH, you will need an SSH client such as PuTTY or JuiceSSH.The following is based on Ubuntu so some parts may need adapting based on your distro1) Make sure Linux is up to date & few installs:sudo apt-get updatesudo apt-get upgradesudo apt-get install unzipsudo apt-get install screen2) Make a directory for Vertcoin, and go to that directory:mkdir vertcoin ##makes folder called vertcoincd vertcoin ##goes to folder3) Download and extract Vertcoin Core:wget http://ift.tt/2kD84ab vertcoin-v0.12.0-linux-64bit.zip ##extracts the zipped folder4) Start the sync process:./vertcoind -daemon ##starts the syncingcommands starting with ./vertcoind will only work from within the 'vertcoin' folder4.5) [OPTIONAL] Speed up the syncing process:./vertcoin-cli stop ##stops the syncingcommands starting with ./vertcoin-cli will only work from within the 'vertcoin' foldercd ~ or cd .. ##goes home or goes back a foldercd .vertcoin ##goes to the vertcoin data directorywget http://ift.tt/2CKI1Ge ##downloads the blockchain up to 10/18/2017cd ~ or cd .. ##goes home or goes back a foldercd vertcoin ##goes to vertcoin core directory we created in step 2./vertcoind -daemon ##starts indexing the blocks and continues the sync processYou can check if it is done by using this command when in the vertcoin folder:./vertcoin-cli getblockchaininfoIf blocks and headers show the same value then it is complete. Also check against a block explorer to see if they match.If you get an ERROR: -28, wait a few minutes and then try again.5) Setup vertcoin.confcd ~ ##goes homecd .vertcoin ##goes to vertcoin data directorynano vertcoin.conf ##edit the vertcoin.conf fileEnter this:server=1rpcallowip=127.0.0.1rpcuser=chooseyourusernamerpcpassword=setthistosomethingrandomwithnumbersandlettersrpcport=5888To save, click CTRL+X, choose Y (for yes) then save with the same name (press Enter/Return)6) Install P2Pool:cd ~ ##goes homesudo apt-get install python python-pip ##installs a prerequisitesudo pip install --upgrade pip ##updates pipsudo add-apt-repository ppa:vertcoin/ppa ##more repos to install fromsudo apt-get updatepip2 install p2pool-vtc ##installs P2Pool7) Run P2Poolscreen ##creates a screen to allow the script to run even when not connected to SSHNetwork 1:python run_p2pool.py --net vertcoin -a YOURADDRESSHERE --give-author 1 -f 1Network 2:python run_p2pool.py --net vertcoin2 -a YOURADDRESSHERE --give-author 1 -f 1Change "YOURADDRESSHERE" to your actual address, you may set the fee by changing the number after the "-f" and the donation by changing the number after "--give-author"8) Detach from screen:CTRL + A then CTRL + D (or CTRL + A +D)Whenever you'd like to go back to view what the node is doing, open up an SSH session and type screen -rYou may now disconnect from SSH, your node should be up, you can do this by checking your IP:Port in a browser i.e. 176.126.78.87:9181The port for Network 1 is 9171, and for Network 2 it is 9181.9) Install a UI onto the node so the webpage looks nicer:cd ~ ##goes homecd p2pool-vtc ##goes to p2pool-vtc foldermv web-static web-static-old ##moves old UI to a different folder (effectively a backup)git clone http://ift.tt/2hYvfdK ##clones UI from GitHubmv p2pool-ui-punchy web-static ##moves UI folder to be visible in the web-static foldercp web-static/js/config.example.json web-static/js/config.jsonnano web-static/js/config.json ##edit the file - you may want to get rid of the header content URL and the myself addresses:var config = { myself : [], host : "", reload_interval : 30, reload_chart_interval : 600, header_content_url : ""}That's everything done! If you found this guide useful let me know in the comments :) Also, if there's anything wrong/outdated let me know.Maybe consider donating? Vo7zcW5Qq5aSjdFsrzvABQ2hV7U4zLgbop via /r/vertcoin

#vertcoin #cryptocurrency

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live24u-blog · 8 years ago

Link

#windows

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cryptocurrienciesspace-blog · 8 years ago

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Creating a cold wallet offline without a third-party wallet

There are several third-party (by which I mean, not written by Ripple Inc.) wallets out there, and they are probably trustworthy, but no one knows for sure. This is a short guide for those of us who are a bit paranoid. It follows on from this guide: But you don’t need to have a Raspberry Pi, just a Linux PC that you trust. I’m basing this on Ubuntu 16.04. You will need some basic knowledge of using Terminal in Linux. First, install Node and npm: https://www.digitalocean.com/community/tutorials/how-to-install-node-js-on-ubuntu-16-04 Quote In order to get this version, we just have to use the apt package manager. We should refresh our local package index first, and then install from the repositories: $ sudo apt-get update $ sudo apt-get install nodejs If the package in the repositories suits your needs, this is all that you need to do to get set up with Node.js. In most cases, you’ll also want to also install npm, which is the Node.js package manager. You can do this by typing: $ sudo apt-get install npm This will allow you to easily install modules and packages to use with Node.js. Because of a conflict with another package, the executable from the Ubuntu repositories is called nodejs instead of node. Keep this in mind as you are running software. Then follow these instructions from @JoelKatz (thanks, JK!). I suggest you create the cold wallet directory inside an encrypted partition, if you have one. Once all packages are installed, I recommend you take the computer offline, for good. Then generate the keys. Remember, if using Ubuntu, at steps 4 & 5 you have to type nodejs in place of node. Once you are absolutely sure that it is valid and you have the secret key safely stored, you can fund the wallet using an online computer (at least 20 XRP). Then you can check it’s activated by looking at bithomp.com. (Aside: I also tried the method detailed here but couldn’t get it to work. If anyone can see an error in the method, please point it out.)

https://cryptocurrencies.space/creating-a-cold-wallet-offline-without-a-third-party-wallet/

#bitfinex exchange review android #Ripple

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weekinethereum · 8 years ago

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April 16, 2017

News and Links

Top

Casper Stage 1 Implementation Guide for PoW to hybrid PoS/PoW

Google’s Creative Lab in Sydney: A digital book that gets altered as it is passed on

Protocol and Geth release

Ethereum Core Devs Meeting video and notes

Geth 1.6.0 now out with lots of new stuff

Péter Szilágyi puts a Raspberry Pi Zero W on the chain as a light node

Stuff for Dapp developers

Alex Miller: Getting Started as an Ethereum Web Developer

Empty Dapp Template code. HTML + JavaScript + jQuery + web3.js + AlphaLayer.js

Repo for Solidity design patterns

Zeppelin's security audit of iEx.ec. After ether.camp's bug, people still aren't using safeMath?

Whisper Push Notifications

Ledger Labs state channels wiki

Ecosystem

Trustlines Network: The original Ripple idea on Ethereum

ENS is part of Foundation's Bug Bounty program

Latest issue of The Etherian - in-depth dapp coverage

Simon de la Rouviere: Jack & The Giant Joint-Stock Pepe: The History & Future of the Corporation

Storj - opportunities from moving to Ethereum

Aragon releases white paper

Interviews

Carl and Jarrad from Status talk with Blockchannel

Aragon talks to Coin Interview

Status talks to Patrick Long from WeTrust

CoinFund's Jake Brukhman talks to Blockchannel

Project Updates

Colony Q2 Update

Golem 0.5.0 for Ubuntu and macOS

FirstBlood alpha released to token sale participants

Melon v0.1.0 now available

Token Sales

I listened to an Andreas Antonopoulos podcast this week about Ethereum token sales, and it was shocking how little he knew about the events he was pontificating on. 45 minutes of getting things factually incorrect. It was so bad I won't even link to it.

It appears that Blockchain Capital raised just $180k USD from the Ethereum community

EthBits has raised about 300k USD so far, Lunyr 700k, Humaniq says 1.6m (tough to verify)

Gilles Fedak on Epicenter

Gnosis commits to just 10% tokens for founders.

It's fantastic that they're innovating on token sale structures and ignoring the small but vocal crowd of haters.

Daniel Zakrisson: Building a crowdsale evaluation process

General

Jeremiah Nichol -- with a small assist from me -- turned last week's newsletter into a short audio podcast

The deadline to withdraw DAO ETC has been extended to Jan 10, 2018 by the White Hat Group

Broadridge, J.P. Morgan, Northern Trust and Banco Santander team up to fix shareholder proxy votes

My friend Cory is putting together a Devcon3 house in Cancun from Oct 15 - Nov 15. [Disclosure: I think he's paying me a referral fee]

Dates of note

[For ongoing sales, check previous week]

April 19 -- iEx.ec sale begins

April 24 -- Gnosis Dutch auction begins

April 24-25 -- Rice Blockchain for Business conference. A mini DevCon speaker list. Register.

April 25 -- Sikoba public pre-sale begins.However, a pre-allocation is already open

April 25 -- Veritaseum sale begins

April 26 -- Lunyr sale closes

May 2 -- E4ROW sale begins

May 10 -- Boscoin sale begins

May 25 - William Mougayar's Token Summit in NYC. Get a special 20% discount by entering WIENews at checkout. Discount expires April 17th. Will I see you there?

Bias transparency: if you host a blockchain conference and don't use Ticketleap, I'm much less likely to include your conference, unless you have a good reason as to why we're not a good fit. But I doubt there is one, because we're likely a great fit. /shamelessplug

[I aim for a relatively comprehensive list of Ethereum sales, but make no warranty as to even whether they are legit; as such, I thus likewise warrant nothing about whether any will produce a satisfactory return. I may have passed the CFA exams, but this is not investment advice. If you're interested in what I do, you can find my investing thesis and token sale appreciation strategies in previous newsletters.]

Errors or additions: [email protected]

This will be the link to share

Here's the link if you'd like to make me happy and share this issue: http://www.weekinethereum.com/post/159672379173/april-16-2017 Also, you can follow me on Twitter @evan_van_ness

This newsletter is supported by Status.im. But in case you still want to send Ether (or tokens?): 0x96d4F0E75ae86e4c46cD8e9D4AE2F2309bD6Ec45

#ethereum

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robertbryantblog · 6 years ago

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Where To Find Host Name

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The post Where To Find Host Name appeared first on Quick Click Hosting.

from Quick Click Hosting https://quickclickhosting.com/where-to-find-host-name/

#Quick Click Hosting

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robertbryantblog · 6 years ago

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How To Identify Vulnerable Websites

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The post How To Identify Vulnerable Websites appeared first on Quick Click Hosting.

from Quick Click Hosting https://quickclickhosting.com/how-to-identify-vulnerable-websites/

#Quick Click Hosting

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t-baba · 7 years ago

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An Introduction to Gulp.js

Developers spend precious little time coding. Even if we ignore irritating meetings, much of the job involves basic tasks which can sap your working day:

generating HTML from templates and content files

compressing new and modified images

compiling Sass to CSS code

removing console and debugger statements from scripts

transpiling ES6 to cross-browser–compatible ES5 code

code linting and validation

concatenating and minifying CSS and JavaScript files

deploying files to development, staging and production servers.

If so, you need a task runner or build process.

That Sounds Scarily Complicated!

Automate the most frustrating tasks first.

Try not to over-complicate your build process. An hour or two is more than enough for the initial setup.

Choose task runner software and stick with it for a while. Don't switch to another option on a whim.

Some of the tools and concepts may be new to you, but take a deep breath and concentrate on one thing at a time.

Task Runners: the Options

Grunt required plugins for basic functionality such as file watching.

Grunt plugins often performed multiple tasks, which made customisation more awkward.

JSON configuration could become unwieldy for all but the most basic tasks.

Tasks could run slowly because Grunt saved files between every processing step.

Many issues were addressed in later editions, but Gulp had already arrived and offered a number of improvements:

Features such as file watching were built in.

Gulp plugins were (mostly) designed to do a single job.

Gulp used JavaScript configuration code that was less verbose, easier to read, simpler to modify, and provided better flexibility.

Gulp was faster because it uses Node.js streams to pass data through a series of piped plugins. Files were only written at the end of the task.

Gulp requires Node.js, but while some JavaScript knowledge is beneficial, developers from all web programming faiths will find it useful.

What About Gulp 4?

Step 1: Install Node.js

Once installed, open a command prompt and enter:

node -v

This reveals the version number. You're about to make heavy use of npm — the Node.js package manager which is used to install modules. Examine its version number:

npm -v

cd ~ mkdir .node_modules_global npm config set prefix=$HOME/.node_modules_global npm install npm -g

Then add the following line to the end of ~/.bashrc:

export PATH="$HOME/.node_modules_global/bin:$PATH"

Finally, update with this:

source ~/.bashrc

Step 2: Install Gulp Globally

Install Gulp command-line interface globally so the gulp command can be run from any project folder:

npm install gulp-cli -g

Verify Gulp has installed with this:

gulp -v

Step 3: Configure Your Project

Note for Node.js projects: you can skip this step if you already have a package.json configuration file.

Presume you have a new or pre-existing project in the folder project1. Navigate to this folder and initialize it with npm:

cd project1 npm init

You’ll be asked a series of questions. Enter a value or hit Return to accept defaults. A package.json file will be created on completion which stores your npm configuration settings.

For the remainder of this article, we'll presume your project folder contains the following sub-folders:

src folder: preprocessed source files

This contains further sub-folders:

html - HTML source files and templates

images — the original uncompressed images

js — multiple preprocessed script files

scss — multiple preprocessed Sass .scss files

build folder: compiled/processed files

Gulp will create files and create sub-folders as necessary:

html — compiled static HTML files

images — compressed images

js — a single concatenated and minified JavaScript file

css — a single compiled and minified CSS file

Your project will almost certainly be different but this structure is used for the examples below.

Tip: If you're on a Unix-based system and you just want to follow along with the tutorial, you can recreate the folder structure with the following command:

mkdir -p src/{html,images,js,scss} build/{html,images,js,css}

Step 4: Install Gulp Locally

You can now install Gulp in your project folder using the command:

npm install gulp --save-dev

Alternative Deployment Options

export NODE_ENV=production

Or on Windows:

set NODE_ENV=production

npm install gulp --save

Step 4: Create a Gulp Configuration File

Create a new gulpfile.js configuration file in the root of your project folder. Add some basic code to get started:

// Gulp.js configuration var // modules gulp = require('gulp'), // development mode? devBuild = (process.env.NODE_ENV !== 'production'), // folders folder = { src: 'src/', build: 'build/' } ;

This references the Gulp module, sets a devBuild variable to true when running in development (or non-production mode) and defines the source and build folder locations.

gulpfile.js won't do anything yet because you need to …

Step 5: Create Gulp Tasks

On its own, Gulp does nothing. You must:

install Gulp plugins, and

write tasks which utilize those plugins to do something useful.

Gulp provides three primary task methods:

gulp.task — defines a new task with a name, optional array of dependencies and a function.

gulp.src — sets the folder where source files are located.

gulp.dest — sets the destination folder where build files will be placed.

Any number of plugin calls are set with pipe between the .src and .dest.

Continue reading %An Introduction to Gulp.js%

by Craig Buckler via SitePoint http://ift.tt/2DO6sCV

#CSS3 #HTML5 Branding #HTML5 Weekly #HTMLl5 demos #Javascript Branding #Javascript Weekly #Mobile #Mo

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