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#React Redux in React JS with Example
programming-fields · 8 months
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https://programmingfields.com/use-redux-react-redux-in-react-js-with-example
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websourceitsolution · 4 months
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akilshree1 · 1 year
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"Supercharge Your Web Development with React JS: A Step-by-Step Tutorial"
"Supercharge Your Web Development with React JS: A Step-by-Step Tutorial"
The open-source JavaScript package React.js, sometimes known as React, is used to create user interfaces (UIs) for web applications. It was created by Facebook, and Facebook, along with a community of independent developers and businesses, is now maintaining it. React is a popular alternative for developing contemporary web apps because of its component-based architecture and effective method of handling UI modifications.
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Let's explore React.js in greater depth: 1.Component-based architecture, for example:
• The component-based architecture used by React divides the user interface into manageable, reusable components. These elements can stand in for many different elements of a web page, including buttons, forms, or full sections.
• Each component contains its own rendering, state, and logic. By allowing developers to concentrate, this modularity streamlines development and maintenance.
2. The usage of a virtual DOM (document object model) is one of React's key advances. React uses a virtual representation of the DOM (the web page's structure) in memory as opposed to directly modifying the actual DOM.
• React efficiently determines the difference (diffing) between the old and new virtual DOM trees when the state of a component changes.
• React updates the DOM only when it is necessary, reducing browser reflows and enhancing performance.
Third, JSX (JavaScript XML):
• Developers may write HTML-like code inside JavaScript files thanks to React's use of the JSX syntax extension. The structure and look of components can be easily defined using JSX.
• By using programs like Babel, JSX code is converted into ordinary JavaScript.
Declarative Syntax: React promotes this type of programming. React controls the rendering, while developers specify how the user interface (UI) should appear based on the current state.
• By using this method, less imperative code is required to directly alter the DOM, making the UI code more predictable and readable.
5. State Administration:
React offers a way to control how components' states are managed. State is a representation of dynamic data, such as dropdown menu visibility or form input values.
• React ensures that the user interface (UI) always represents the current application state by automatically re-rendering the affected components when the state changes.
 6. Data Flow in One Direction:
• Data only goes in one direction, often from parent components to child components, thanks to React's enforcement of a unidirectional data flow. This keeps the application's data flow consistent and logical. Reactive Ecosystem:
• React offers a robust ecosystem with a wide range of libraries and tools, such as:
• React Router: Used for single-page applications' routing and navigation.
• Redux: A well-liked library for centralized and predictable application state management.
• Styled-components and Emotion: Libraries for applying CSS-in-JS styling to React components
• React Native: This is a framework for creating native mobile applications based on React.
 8. Large Developer Community and Resources: Since React has a sizable and vibrant developer community, there are a ton of resources, tutorials, and third-party libraries accessible to help with development. In conclusion, React.js is a strong JavaScript toolkit for creating cutting-edge, engaging, and effective user interfaces in online applications. Developers aiming to construct dynamic and maintainable UIs frequently choose it because of its component-based architecture, virtual DOM, and declarative syntax. React's sizable community and ecosystem ensure that it will develop and continue to be a crucial tool in web development.
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I strongly advise getting in touch with ACTE Institution because they provide certifications and opportunities for job placement if you want to learn more about Reacte Js. You can study more effectively with the aid of knowledgeable tutors. These services are available both offline and online. Take things slow, and if you're interested, think about signing up for a course.
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codehunter · 1 year
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React performance: rendering big list with PureRenderMixin
I took a TodoList example to reflect my problem but obviously my real-world code is more complex.
I have some pseudo-code like this.
var Todo = React.createClass({ mixins: [PureRenderMixin], ............ }var TodosContainer = React.createClass({ mixins: [PureRenderMixin], renderTodo: function(todo) { return <Todo key={todo.id} todoData={todo} x={this.props.x} y={this.props.y} .../>; }, render: function() { var todos = this.props.todos.map(this.renderTodo) return ( <ReactCSSTransitionGroup transitionName="transition-todo"> {todos} </ReactCSSTransitionGroup>, ); }});
All my data is immutable, and PureRenderMixin is used appropriately and everything works fine. When a Todo data is modified, only the parent and the edited todo is re-rendered.
The problem is that at some point my list grows big as the user is scrolling. And when a single Todo is updated, it takes more and more time to render the parent, call shouldComponentUpdate on all the todos, and then render the single todo.
As you can see, the Todo component has other component than the Todo data. This is data that is required for render by all the todos and is shared (for example we could imagine there's a "displayMode" for the todos). Having many properties makes the shouldComponentUpdate perform a little bit slower.
Also, using ReactCSSTransitionGroup seems to slow down a little too, as ReactCSSTransitionGroup have to render itself and ReactCSSTransitionGroupChild even before the shouldComponentUpdate of todos is called. React.addons.Perf shows that ReactCSSTransitionGroup > ReactCSSTransitionGroupChild rendering is time wasted for each item of the list.
So, as far as I know, I use PureRenderMixin but with a larger list this may be not enough. I still get not so bad performances, but would like to know if there are easy ways to optimize my renderings.
Any idea?
Edit:
So far, my big list is paginated, so instead of having a big list of items, I now split this big list in a list of pages. This permits to have better performances as each page can now implement shouldComponentUpdate. Now when an item changes in a page, React only has to call the main render function that iterates on the page, and only call the render function from a single page, which make a lot less iteration work.
However, my render performance is still linear to the page number (O(n)) I have. So if I have thousands of pages it's still the same issue :) In my usecase it's unlikely to happen but I'm still interested in a better solution.
I am pretty sure it is possible to achieve O(log(n)) rendering performance where n is the number of items (or pages), by splitting a large list into a tree (like a persistent data structure), and where each node has the power to short-circuit the computation with shouldComponentUpdate
Yes I'm thinking of something akin to persistent data structures like Vector in Scala or Clojure:
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However I'm concerned about React because as far as I know it may have to create intermediate dom nodes when rendering the internal nodes of the tree. This may be a problem according to the usecase (and may be solved in future versions of React)
Also as we are using Javascript I wonder if Immutable-JS support this, and make the "internal nodes" accessible. See: https://github.com/facebook/immutable-js/issues/541
Edit: useful link with my experiments: Can a React-Redux app really scale as well as, say Backbone? Even with reselect. On mobile
https://codehunter.cc/a/reactjs/react-performance-rendering-big-list-with-purerendermixin
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Front-End Developers - Remote
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Company:Supabase We're looking for a Senior Front End Developer to join our team to help change the way developers build their applications. You'll be primarily responsible for growing our NextJS apps to a comprehensive development stack, including our backend API, user authentication and expanding our React UI. You'll be an indispensable part of the team, by working very closely with our frontend team, designers, founders and backend engineers; you'll be directly contributing to technical choices, building a team culture and co-authoring internal processes for a growing team. This role is specifically focused around observability (”o11y”). You will work to improve logging, reporting and analytics in the Dashboard for all of our tools. This is an opportunity to truly take ownership of a web platform, defining how it evolves, and how we can scale our users, team, product and processes. What we need This role requires three critical attributes: - You’ve got a background in working with data. In addition to your frontend skills, you’ve got experience with wrangling and visualizing data. You might have worked on other customer-facing dashboards, building time-series visualizations for reporting metrics like usage and utilization. You have meaningful experience presenting data to users. You don’t need to be a database expert, but you are solid SQL—optimizing SQL queries would be a common task, for example. - Ability to write great production React code in Next.JS. You know React and Next.JS very well. You know a state management tool like Redux or MobX really well. You implicitly know many of the reasons why we’re rewriting our Dashboard to use React Query instead of MobX. You can take a MobX store and rewrite it using React Query. -  Ability to self-manage. Every company will expect you to self-manage to some degree, but Supabase takes this to a new level. We are a flat, early-stage startup without a lot of structure. To thrive in this environment, you’ll need to be a motivated self-starter who is good working asynchronously across multiple teams. We’re looking for someone who will identify things that need improvement and put their heads down until it’s shipped. What you’ll do - Build our logging, reporting and analytics tools in the Dashboard, iterating existing features and building new ones. - Take ownership of the Dashboard front end stack, planning and iterating on it based on a roadmap that you have an active voice in moulding. - Build tools within the Supabase ecosystem, occasionally dogfooding our own work - Interacting with customers on a daily basis. - Help build out the test suite for the Dashboard - Improve the speed, performance and code quality of our Dashboard - Triage and fix GitHub issues Must haves - 5+ years experience in web development (React, Typescript, HTML, CSS, Node.js, relational databases); - Knowledge of modern JS (ES6 etc), React UI Components (we use Radix), state management (Mobx, Redux, etc), and data fetching strategies using React Query / SWR, etc; - Experience with building visual tools for logging, reporting analytics; - Experience with relational databases (especially Postgres) and SQL - Willingness to evolve and shape the development tools/stack; - Willingness to regularly talk to customers to ensure we’re solving problems they have; - Willingness to work in a fast-paced environment. Nice to haves - Experience with d3js; - Experience working on large projects, and the code and contribution complexities that come with it; - Web accessibility experience; - Experience working on a large, open-source project. We offer: - 100% remote work from anywhere in the world. No location-based adjustment to your salary. - ESOP (equity ownership in the company) - Autonomous work. We work collaboratively on projects, but you set your own pace. - Health, Vision and Dental benefits. Supabase covers 100% of the cost for employees and 80% for dependents - Generous Tech Allowance for any office setup you need - Annual Education Allowance - Annually run off-sites. BUILD IN A WEEKEND. SCALE TO BILLIONS Supabase adds auth, realtime, and restful APIs to Postgres without a single line of code. Each project within Supabase is an isolated Postgres cluster, allowing customers to scale independently, while still providing the features that you need to build: instant database setup, auth, row level security, realtime data streams, auto-generating APIs, and a simple to use web interface. We are a fully remote company. Key Tech: Javascript, Typescript, Go, Elixir, PostgREST (haskell), Postgres, Pulumi. About the team - We're a startup. It's unstructured. - Collectively founded more than a dozen venture-backed companies. - More than 10 different nationalities. - We deeply believe in the efficacy of collaborative open source. We support existing communities and tools, rather than building "yet another xx". - We "dogfood" everything. If you use it in your project, we use it in Supabase. Process - The entire process is fully remote and all communication will happen over email or via video chat. - Once you've submitted your application, the team will review your submission, and may reach out for a short screening interview over video call. - If you pass the screen you will be invited to up to four follow up interviews. The calls: - usually take between 20-45 minutes each depending on the interviewer. - are all 1:1. - will be with both founders, a member of either the growth or engineering team (depending on the role), and usually one other person from your immediate team or function. - Once the interviews are over, the team will meet to discuss several roles and candidates and may: - ask one or two follow-up questions over email or a quick call. - go directly to making an offer. APPLY ON THE COMPANY WEBSITE To get free remote job alerts, please join our telegram channel “Global Job Alerts” or follow us on Twitter for latest job updates. Disclaimer:  - This job opening is available on the respective company website as of 1stJuly 2023. The job openings may get expired by the time you check the post. - Candidates are requested to study and verify all the job details before applying and contact the respective company representative in case they have any queries. - The owner of this site has provided all the available information regarding the location of the job i.e. work from anywhere, work from home, fully remote, remote, etc. However, if you would like to have any clarification regarding the location of the job or have any further queries or doubts; please contact the respective company representative. Viewers are advised to do full requisite enquiries regarding job location before applying for each job.   - Authentic companies never ask for payments for any job-related processes. Please carry out financial transactions (if any) at your own risk. - All the information and logos are taken from the respective company website. Read the full article
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helenruth · 1 year
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How Can React JS Development Services Help Businesses Create Scalable And High-Performance Web Applications?
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So you have decided to create a high-quality web application and now evaluating different technologies. 
Look no further! React JS, a popular JavaScript library, is here to revolutionize how you build web applications. With its exceptional capabilities, React JS enables entrepreneurs to create interactive, user-friendly, and blazing-fast web applications that elevate their online presence and drive success.
But to fully leverage its potential, you should have reliable React JS developers on your team. These teams can help you harness the true potential of this innovative technology and create visually stunning web applications.
Let’s understand some of the leading benefits of React JS and why it is preferable for every type of business.
Top 5 Ways How React JS Development Services Can Help Your Business
1. Improved User Experience
React JS helps create efficient, dynamic UI components that allow seamless and responsive interactions. As a result, improving the user experience and increasing customer engagement & conversions.
Additionally, it has a wide range of user interface components that are responsive & dynamic and can be easily integrated into web applications. Which helps to provide a consistent and familiar user experience across different pages and applications.
2. Popular Libraries
It is one of the foremost reasons for choosing React JS development services for your web applications. React JS has a rich ecosystem of third-party libraries that can enhance development productivity and enable the creation of scalable web apps. For e.g., Redux for state management, Axios for making API calls, React Router for handling routing, and Material-UI for UI components.
These libraries help streamline development processes, promote code reusability, and enhance performance. 
3. Code Reuse and Maintenance
React JS allows for the development of reusable components, which can be easily integrated across different parts of a web application, saving time and effort in the development process.
Also, its modular approach allows React JS developers to fix bugs, update features, and add new functionality without disrupting the entire application, ultimately simplifying the maintenance. 
4. Reusable Components
The React web application consists of multiple components. For example, developers can begin coding with essential elements like a dropdown menu, checkbox, or button and then use these elements to create more substantial parts.
As a result of reusing these components, each with its own logic and controls, the application's development time can be reduced.
5. Best Option for Large-Scale Web App Development
With React, developers can create large web applications using JSX (JavaScript Syntax Extension). 
The JSX syntax enables JavaScript to be optimized for optimal performance.
With React, you can build fast, scalable, modular, and simple web applications. Additionally, it can be combined with other JavaScript libraries and frameworks. 
Final Thoughts
React JS development services offer businesses a powerful tool to create web applications that are scalable and high-performing. The flexibility and efficiency of React JS allow for seamless user interfaces, improved performance, and enhanced user experiences. By leveraging React JS development services, entrepreneurs can build robust web applications that deliver exceptional performance across various devices and platforms. 
With its extensive ecosystem of libraries, tools, and community support, React JS empowers businesses to stay at the forefront of web development. 
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scvnthorpe · 1 year
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(Why) React is a Framework
!! As an immense disclaimer !!
I want to reiterate that this is basically subjective and belongs in the realm of bullshit metaphysics, which programmers are just great at.
Moreover, I don't really care a whole lot about the semantics and haven't been writing react code for about a year at this point. I think you can call it either a library, or a framework, or both!
Nevertheless, I wanted to provide my own perspective on this because I think it's a good launching point for
(Also yes I am this obnoxious with colours, I just love using colours ok)
So what's the problem here?
The first time I was really confronted with this must have been when I was toward the tail end of my coding bootcamp in the early months of 2020 and I decided to go along to a little Javascript conference during the early stages of my tech job hunt.
One of the speakers was giving a talk about the latest exciting things happening with React, which was still new to me at the time as I had mostly worked with Ruby, Rails and vanilla JS.
But in any case, I remember one part of the talk in particular. He quizzed us with a show of hands on whether React was a library or a framework, after which he joked (I hope) that he didn't hire people who thought React was a framework and not a library. Most likely in good fun, but this issue also pops up in the context of serious programming material.
This excerpt from What React is and Why it Matters, for instance, is very explicit in stating React is a Library, Not a Framework.
Moreover, we get a definition which I think captures a lot people's reasoning as to why they don't see React as a full framework:
One important distinction between libraries like React and frameworks like Ember.js and AngularJS is that React is concerned only with rendering the UI and leaves many things up to each project to put together.....React’s choice to be a library has allowed projects to adopt it more incrementally and has left the door open to rapid innovation from the community on various other parts of the stack.
There are other definitions out there, and the point which I'm trying to set up here is hardly special, but there are a couple disagreements I have with the above definition.
Firstly, 'only with' is doing quite a bit of heavy lifting in my view; that's pretty central to what a frontend application is at its core and frankly features such as persistent state and routing aren't really central features of a frontend application in the sense that, well, a UI is.
Secondly, while it is true that AngularJS is more opinionated and ships with CLI build/test tools and routing, it doesn't ship with 'everything' you might need; it lacks app-level state management, as a counter-example. In turn, SvelteJS ships with stores à la Redux, but if you want routing you'll either need another library or to use SvelteKit. As it turns out, a lot of frameworks we accept as such still leave many things up to us, the developers, so then where is the cutoff point that includes these other things but excludes react?
In fact, going back to my time with Rails, what about authentication? That's pretty important to a framework such as Rails, which covers both the frontend and the backend of your application. Now don't get me wrong, it *is* possible to cook up your own authentication solution in house using what Rails provides you, but many will use Devise as I did, or Cancancan, or Pundit.
In fact you might say fuck it and use OmniAuth or some shit so that facebook or google handle your user authentication for you. In fact, on the topic of security and coming back to frontend frameworks, React forms sanitise all text inputs by default. That's... above and beyond just 'rendering the UI' but is also really nice to have because sanitisation requires a ton of care and bespoke implementations are generally avoided (Because XSS can be very crafty).
Thirdly, you can adopt basically anything incrementally if you're brave, or crazy, enough! But for reasons which I'll come back to later, this... isn't really much more feasible for React than for others.
My point being, there are many important concerns a given framework isn't guaranteed to handle, but every framework provides handling for some key concern (in this case, the UI) and then some of the others.
But we're focusing on the wrong thing: after all, what *isn't* a framework by this definition? How do we know when a library... is just a library?
So, what makes something just a library?
>Crowd already booing by this point
I'm gonna just say it. Ahem. A package of code in use in a tech stack is a library, but not a framework, when it can be used without affecting the structure of your program.
The natural response to this is, What the fuck are you on about!? Libraries, after all, are there to share code so we don't have to reinvent the wheel 500 fucking times like we're C programmers in the 80s.
We are at the point where pulling a teensy tiny 11-line library from npm can sink all of web development for a bit. A useful library doesn't just leave an impression on a couple codebases: nay, it lives absolutely and indomitably goddamn fucking everywhere, like earth worms in a rich patch of soil.
But in fact, with most libraries there is another way! Recently I've been reading David Farley's 2021 book Modern Software Engineering which has given me some new ideas; I'm not really one to sprinkle design patterns everywhere for their own sake and I like to keep it simple (stupid!), but I must admit ports and adapters - aka hexagonal architecture - really helps with vital program dependencies in any paradigm.
In the example - for simplicity's sake and because needless to say libraries can get this small and still be relevant - we will consider the absolute heinous khrafstra of a thing that is javascript's standard Array.prototype.sort(). Seriously, look at this shit.
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Now, naturally a common use case would be to put in something better! Let's say, for example, that we're in CompSci class territory and we've got a bubble sort that does the job and we have it in a bunch of silly little procedures like this - imagine not just allInOrder, but a whole file or two's worth of processes that can benefit from in-place sorting:
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However, let's say we've been gnomed and decide we'd want to use gnome sort. In this case, we would have to put it everywhere we were formerly using bubbleSort...
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Now, in a case such as this we could just do a simple find and replace for bubbleSort with gnomeSort. But, especially with more complex dependencies and to avoid raking through swathes of the codebase in any case, we could instead wrap our sort of choice:
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This way, we can gnomeSort, bubbleSort - I mean fuck it, we could put in bogoSort if we wanted! Or maybe, we could use something like an insertionSort or a quickSort or some other algorithm that's actually used in the real world... But we've encapsulated that choice. Thus, we only have to change the internals of one function, and as far as the rest of the code is concerned we're using a proper sort and not whatever Array.prototype.sort() is up to.
Again, just one lil function like this shouldn't usually need to be wrapped in this way, but you can imagine for an entire library the ability to do this really starts to matter!
(There's certainly some old sqlalchemy code I would handle differently today... this sort of thing also helps with dependencies in testing, you see)
If you wrap a major dependency in a module - such as a database client for a given databasing solution, or a set of interactions to a REST API you're using - we can switch said library/API out by reworking that module's internals such that it still satisfies its interface with the rest of the program.
In order words, your program remains loosely coupled with its dependencies.
While you certainly don't have to do this with libraries especially for smaller projects (paralysis by analysis, anyone?), the important part is that you can.
So, how does this all relate to React?
Why React isn't just a library
A framework, however, does fundamentally shape the structure of messages within your code rather than simply living in it, and will do so whether you like it or not.
(Well, most of the time - you can adopt anything incrementally if you're brave enough...).
To illustrate this a little better, let's take a look through Vite's React TS playground. First, we'll start at the index.html:
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The source of our script is in main.tsx, so we'll take a look at that:
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Needless to say, your frontend React project is initialised and runs in the first place via React itself. You take your <;App/> component, wrap it in a couple other things and then pass it all to ReactDOM.render() along with a reference to the root element.
At the very least, all React component code that you're planning on running is going to run under the auspices of APIs provided by React. You can't really encapsulate the fact you're using React from your higher level UI logic to any meaningful benefit, because React is the runtime for all UI code produced with it! I think this is part of the reason why you simply don't see 'incremental' adoption of React into codebases in the wild.
Focusing on React JSX/TSX specifically, a major complaint I've seen with it is that it's entirely non-portable: in virtually all cases you are not simply going to be able to switch from React to something else without having to rewrite the entire structure of the UI.
None of this is to say that this is bad - I've actually quite enjoyed writing JSX/TSX most times I've done it - but to me this isn't just a library. It determines the structure of your code, rather than simply being encapsulated within it.
So what have we learnt?
In my view, a library can be fully encapsulated by your code. A framework, instead, shapes your code. Furthermore, though the boundaries are a little fuzzy, I'd argue that React belongs very much in the latter camp.
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itservicesprovider · 2 years
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Outsourcing ReactJs Development - Use These Steps To Pick the Best Partner For Your Project
JavaScript user interface library called React. React JS became an open-source library in 2013. Some of the most well-known companies in the world use it. Examples of companies that outsource the development of Reactjs include Netflix, Yahoo, and Dropbox.
According to the research, React is the sixth most used JavaScript library among the Top 10,000 websites. However, without first understanding its benefits and drawbacks, determining whether React JS is the appropriate technology for outsourcing Reactjs development may be difficult.
For entrepreneurs who want to use ReactJS to efficiently and swiftly construct their products, the excitement has grown. More and more partners are eager to profit from the popularity of ReactJs apps as the ReactJs development market expands.
Finding the ideal partner to outsource your project is getting more difficult as a result. To avoid wasting time or money, follow these easy steps when selecting a partner for your ReactJs development services.
Online Dating for Potential Partners
After completing all of these processes, you can begin working with your new team. Online dating is a terrific place to start looking for potential companions. To discover developers with the necessary expertise, search online directories like LinkedIn and Upwork.
Make sure to enquire about their fees, qualifications, and availability. Before deciding to collaborate, it's a good idea to give them a tiny test task to complete. Here are some pointers to get you going:
Ascertain the areas of expertise of prospective partners. Asking them about their areas of strength will help you achieve this.
Learn how long the company has been in operation and how many projects it has completed in the past. You might enquire about their prior clientele and any challenges they may have encountered throughout those projects.
Before beginning the development process (i.e., contract) or hiring procedure, make sure to get everything in writing (i.e., W2 forms). Before moving on to the next step in either process, try to get both parties to sign everything. For instance, if you're an employer looking to recruit a company that has been outsourced, ensure sure the terms of employment are spelled out in a contract that both sides have signed.
Likewise, if you're searching for an outsourcing firm, avoid signing any contracts that weren't drafted and witnessed by both sides. They might have provisions that are unfair to one party and have unintended effects in the future.
Read About : Why ReactJS Development Is Perfect Choice 
Top ReactJS Developer Qualities
To choose a capable ReactJS developer for your project, be sure to take into account the following characteristics:
The most fundamental abilities required of a Reactjs developer are HTML and CSS generation. It is not advisable to hire a candidate with insufficient knowledge. Hire Reactjs developers who can create engaging user interfaces as an alternative. This necessitates a thorough comprehension of design principles.
JSX and Other Components using Reactjs: Reactjs developers need to be educated about JSX, virtual DOM, and component life-cycle in order to get the most out of this flexible front-end framework.
Additional Third-Party Tools for the Reactjs Library: In addition to the built-in libraries, developers who are outsourcing Reactjs development must be educated in a variety of additional technologies, such as Redux, React Router, Create React App, Material Kit React, and others.
Best Practices for Clean Code: To work on your product, you may need to hire more developers. Therefore, the React developer who created the original code must guarantee code coherence and clarity.
Final Reflections
Choosing the Best ReactJS Development Company can be difficult, but you can still find the ideal match for your solution.
The most crucial step in the process is knowing the demands or applicability of your project, though. Without your precise guidance, the project won't result in an excellent final outcome.
The aforementioned information is used as the main criterion for choosing the best ReactJS development company. After all, wise financial decisions are usually advantageous. Although it may seem difficult, the aforementioned methods will make the process go more quickly and smoothly.
Contact Us
iSyncEvolution Pvt Ltd
Services: Reactjs development in USA
Address: 503, Venus Benecia,
Above Nexa Showroom, Opp Rajpath Club, SG Road, Ahmedabad-54.
Phn No: +91 98248 00872
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visualwint · 2 years
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Pagination react codebox
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Pagination react codebox how to#
Pagination react codebox install#
That’s all you need to do to create pagination in react js using hooks. We will first import our hooks from the react and also import the required modules.
Pagination react codebox install#
Create your react project yarn create react-app projectname and install the required modules yarn add axios react-paginate and then open your app.js file.
If you want to visit my previous tutorial you can check that here. Introduction Displaying the State Dispatching Actions to Change State Creating A Basic React-Redux Project. Begin by creating a new React application using the Create React App command below: npx create-react-app pagination-tutorial Remove all the default content from the App.js file. The tutorial code is available on GitHub at https. Our goal is to display the passenger list with pagination, so we’ll use the free REST API to provide a list of passenger data. Assume current page 1, page size 10, total item 160 then total pages to be rendered Math.ceil (160/10) 16 since current page 1, and it has to render a total of 10 pages, so. Styling of the example is done with Bootstap 4. The example contains a hard coded array of 150 objects split into 30 pages (5 items per page) to demonstrate how the pagination logic works.
Pagination react codebox how to#
Introduction Learn The Fundamentals of Redux. This is a simple example of how to implement server-side pagination in React with a Node.js backend API. uirouter/angularjs unleashit/pagination vaadin/vaadin-demo-helpers. Introduction Creating & Running React Projects With create-react-app. + GitHub Security + Angular Security + React Security + Secure Code Review. In my previous tutorial of creating pagination in react js, I have used class components to create pagination but after the huge response, I thought I should also write that tutorial using the functional components. Building Real World, Production Quality Apps with React & Redux. In addition, as pages likely have more than one such navigation section, it’s advisable to provide a. Now inside your class component create a constructor method and initialize some.
Use a wrapping
element to identify it as a navigation section to screen readers and other assistive technologies. Now import axios import axios from 'axios' and react-paginate import ReactPaginate from 'react-paginate'.
This tutorial will use the React hooks to create pagination in React js. Pagination is built with list HTML elements so screen readers can announce the number of available links.
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nahasunited · 2 years
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Java ver conexiones al router
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#Java ver conexiones al router how to
#Java ver conexiones al router pdf
#Java ver conexiones al router generator
#Java ver conexiones al router full
Sample Android app using clean android-modular-apps Skeleton: Silex framework php and webpack + es6 + sass architecture frontend ionic1todos
#Java ver conexiones al router how to
Sample demonstrating how to delegate authentication in jsreport to an external authorization server to support Single Sign front-silex Simple Router Controller api-with-loopbackĪPI REST build with Loopback.io jsreport-with-author… Timer is a simple coundown app useful for talks and vertical-navigationĪ simple drawing app for Firefox Mozillians_on_Twitte…Ī payload reader for Bitbucket jp-router Playing and learning with react docker-critical-cssĬritical CSS with Docker, puppeteer and flashbitacora Primera aplicacion web para proyecto Open Data de la Municipalidad de react101
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Mira películas y series en español en HD y full HD al instante desde tu compresor-de-imagene…Ĭompresor de imágenes con Google-docs-cloneĪ simple google docs clone made with grunt-external-confi…Įxample of split grunt config file in multiple openhuamanga is still in lowdb-recursiveĭemo del uso de pageres con gulp-primeros-pasos Servo is my server dummy raml-js-webservice-g… Proyecto en JQuery Mobile para construir una web móvil con información del servicio de transporte Metropolitano en Lima, servo Redmine Issues Rest API Client for Metropolitano-Mobile Mapa hidrografico en openlayers del didactic-react (beta) en desarrollo por users-graphql-exampl…Ī small example using opendata-rios-peru JqTree, Spring MVC, GoogleAppEngine jade-examplesĮjercicio demo para el uso de SubeAlMetroĮvaluate a script function on a page with Chrome jsreport-pugĮxperimento tecno-socio-cultural restableciendo conexiones. Notas y ejemplos para presentación en reunión de JavaScript Perú 10 Dic jqtree-spring-mvc-ga… Set and get a data object on an css-url-versioner
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Un simple boilerplate para el uso de universal js con react, redux y jade-php-twigĪ Yeoman generator for creating your own chatbot using the Hubot mvhostĬreate simple virtualhost for apache2 with EarthquakeĪ CouchDB OAuth working example in htmlService-get-set-…įor Google Apps Script HtmlService. Mira películas y series en español en HD y full HD al couchminĪ command line tool to manage multiple local and remote CouchDB curso-reactjsĭemos y Ejemplos para el curso de universal-redux-boil… Includes: babel, xo, webpack and skeletorĮstructura base para un proyecto basado en jade, stylus, es2015. Reader of dependencies from package.json on es2015-nodejs-boiler…Įs2015 nodejs boilerplate. Node.js modules speed test: C++ vs jscomplexĪ colorful reporter for maintainability index via mydependencies Import sequelize models automagically horseshoeĪ wrapper around nodemailer used for sending email using handlebars json-schema-sugarĬreate a JSON Schema without the pain of writing it node-cppspeed
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Jsreport recipe which renders pdf from html using electron gulp-css-url-version…Ī gulp plugin for versioning the CSS property: gulp-emailĪ gulp plugin to send emails with or without attachments from a stream of sequelize-auto-impor… Highly scalable html conversion using electron workers jsreport-electron-pd… Plus for Trello chrome extension, web & mobile electron-html-to Run electron scripts in managed workers Plus-for-Trello 🇵🇪 A list of cool projects made in Peru Contents
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niharbhavsar · 3 years
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Why Leading Businesses Prefer React JS for Web Development?
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When it comes to web development, there are certain primary things that every businesses need. That is speed, functionality, usability, and performance.
React JS is a library of javascript that is developed by Facebook. It is open-source platform, so it becomes easy to fix bugs and highly reliable for developers.
Below are some primary reasons to choose react js over other languages:
1) Cost Effectiveness
React JS has an excellent capability of code reusability. Developers can re-use code built for individual elements and can use it for multiple component of website. This helps in improving speed of react js web development.
Moreover, with react js you just need to write single code for both iOS and Android platform. Its maintenance cost is also low to develop large applications like Facebook and Instagram.
Hence, it is easy to develop similar kinds of application within less time. This reduces the cost to the clients.
2) Increased Productivity
As mentioned earlier, reusability of react js can widely impact speed of development process. It reduces developer’s time and simplify process. Thus it improves productivity.
There are many plugins and tools available to improve productivity. Some of them are Redux Dev Tools, React Dev Tools, Storybook, React Slingshot, Guppy and Bit.
After implementing react js, developers at Twitter have seen massive improvement in its functionalities and productivity.
3) SEO Friendliness
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React JS is the most preferable when it comes to speed. Due to singe way data binding its speed is much more higher than conventional development languages.
Page loading speed is also one of the key ranking factor in Google’s algorithm. The higher you web page loads there are more chances for your website to rank in top 10.
Corporate giants understand the importance of SEO, hence they mostly prefer framework with advanced technology.
4) Robust Coding Structure
Websites developed with react js offers one of the best coding structure. Any modification in single element of web application doesn’t affect entire application. Hence, it provides better code stability.
For smoother performance react js development service providers also uses plugins and tools as mentioned earlier.
Here is code structure guide for reactjs.net for your reference. With robust coding structure, there is also an added advantage of flexibility for developers. Changes in the application can be done easily with the help of code flexibility.
5) Mobile App Development
React native is another element of react js library. With react native businesses can develop mobile version of web application. React native is great for native look and feel across different devices and browsers.
There are many examples of successful incorporation of react js at global level. Some of them are Airbnb, Paypal, NYT, Tencent, Tesla, and BBC.
With many features react js becomes one of the most popular Javascript library for front-end development.
Summary
Hope you have got better insights of react js. In this blog, I have tried to deliver our years of expertise to simplify it. If you have any comments or addition feel free to reach out us. Belton is among the leading service provider for react js and react native development. Don’t hesitate to get in touch if you have same requirement.
ORIGINAL CONTENT
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arkinfosoft · 5 years
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Angular vs React – Which framework is suitable for your mobile app?
There are such a number of articles  titles ‘Angular vs React’, ‘React vs Angular’, ‘Angular or React’ – let’s know about is an exact one next to the other examination of Angular versus React:
·         Architecture:  React is JavaScript library of UI Components. Its managed by Facebook and is an open source community of developers. The most recent updates were released on August eighth, 2019.
Angular is an open-sourced released JavaScript framework for web and mobile development. It is Typescripts-based and managed by Google's Angular Team and the Angular engineer network.
·         Universality: React is a system utilized in both web and mobile development. Besides, for mobile development, there is an extra framework – React Native. React can be utilized to manufacture both single-page and multiple page web applications.
Angular is suitable for both web and versatile advancement. In mobile development, be that as it may, an extraordinary portion of work is done by Ionic. The partner of React Native is Native Script. Angular can likewise be utilized for both single-and multiple page web applications.
·         Scalability: React cases to be simpler to test, which would make scaling simpler as well.
Angular is highly scalable because of its strong structure and amazing command-line interface.  
 ·         Framework: React is a framework for UI advancement, so applications composed with React need extra libraries to be utilized. For example, Redux, React Router, or Helmet enhance the procedures of state the executives, routing, and collaboration with the API.
Angular is framework for software development, which for the most part doesn't require extra libraries.
All the mentioned functions – data binding, component-based routing, project generation, form validation, and dependency injection – can be implemented with the bothbof Angular package and react native.
·         Performance: React’s performance is greatly improved with the presentation of the virtual DOM. React was constantly smooth and thus loaded quicker.
 Angular performs more awful, particularly on account of complex and dynamic web applications. Angular has, it sets aside some time to load, particularly on mobiles.
·         Language: React depends on JavaScript ES6+ joined with JSX content. JSX is an expansion for sentence structure, which makes a JavaScript code look like that written in HTML.
Angular can utilize JavaScript or TypeScript, which is a superset of JS developed explicitly for bigger tasks.
·         Tools: React is supported by various code editors. For example, the code in React can be altered with Sublime Text, Visual Studio, and Atom.
Essentially to React, Angular is supported by a variety of code altering apparatuses. For instance, you may work with such code editors as Aptana, Sublime Text, and Visual Studio.
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80004003 · 5 years
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Adding decorator support to Create React App projects using react-app-rewired
Any experienced frontend developer should be familiar with the number one complaint about frontend development in recent years: it's too difficult to get started. You've heard of this thing called React and so you install it and give it a try; only to find that it doesn't "just work" and requires Babel, Webpack, npm and Node just to get started.
To help people conquer that cliff, Facebook developer and Redux author Dan Abramov created Create React App, which handles most of the difficult configuration work without you ever having to even see it and lets you get right down to work. It's an elegant solution that works well even for larger applications that get deployed to production environments: at my workplace we've been developing two applications with it for over two years now.
Of course, there's a flipside to the magic of "it just works", which is that if something doesn't work, it "just doesn't work". By handling the bundling configuration under the hood it's impossible to make even small adjustments, such as adding new Babel plugins.
It's at that point where I found myself recently, working on one of those production applications and wanting to use the proposed decorator syntax. While CRA does let you "eject" the config files so you can edit them, this also means you basically stop using CRA; it's a one-way operation that adds a ton of complicated files to your project, which now you have to maintain forever. Even as an experienced frontend developer, I'd rather not.
Fortunately, there is a way to make small changes to the bundling setup without having to give up the convenience of zero-config. To do so, we need to swap out the core scripting component of CRA with react-app-rewired, which is an alternative that allows config overrides. Together with the convenience functions provided by customize-cra you can add almost any feature you like with just a few lines.
Here's a step by step guide to add decorators (although you can use any of the other plugins described in the customize-cra readme file after this):
1. If you're starting a new project, just run Create React App like normal.
$ npx create-react-app my-app
The following steps will work with any existing app as long as you're using CRA 2.0 or up—check that your version of react-scripts is above 2.0.0 in your package.json file to verify this. CRA 3.0 should work as well—see the update below.
2. Add react-app-rewired and customize-cra, and any Babel plugins you want to use.
Since we're adding decorators, we'll also add the @babel/plugin-proposal-decorators package.
$ yarn add --dev customize-cra react-app-rewired @babel/plugin-proposal-decorators
3. Open your package.json file and edit the start, build and test scripts.
"scripts": { - "start": "react-scripts start", - "build": "react-scripts build", - "test": "react-scripts test", + "start": "react-app-rewired start", + "build": "react-app-rewired build", + "test": "react-app-rewired test", "eject": "react-scripts eject" },
The eject script stays the way it is, since react-app-rewired becomes unnecessary the moment you run it.
4. Create a config-overrides.js file in your project root.
This is where we'll define our modifications. For now, add the following:
const { override, addDecoratorsLegacy } = require('customize-cra') // Adds legacy decorator support to the Webpack configuration. module.exports = override(addDecoratorsLegacy())
And that's it; we're done. Not a second spent digging through Babel or Webpack documentation.
Now let's run yarn start to boot up the dev server and give it a try. If you want a quick example to copypaste to see if it's working, try this:
import React from 'react' // Decorator that passes on a 'message' property to a class. const addMessage = (str) => (component) => { component.prototype.message = str } @addMessage('Hello world!') class DecoratorTest extends React.PureComponent { render() { return <div>{ this.message }</div> } } export default DecoratorTest
If all went well, this component should evaluate to <div>Hello world!</div>.
There's one obvious caveat to this whole setup: the currently supported version of decorators is legacy and will eventually go away. The proposed new version will change how they work on a fundamental level and the syntax will be subtly different. For example, future decorators will need to come after the export keyword, whereas legacy decorators can appear before it.
However, the intent is for future decorators to be fundamentally compatible with the widely used legacy ones, and one of the spec design goals is to allow upgrading to the new syntax automatically via a codemod.
Keep yourself apprised by following the decorator proposal Github repo.
Update 2019-04-23: just yesterday, the Create React App team released their long awaited new major version 3.0.0. I've only done a quick test so far, but it seems everything still works as before. You can set the react-scripts peer dependency to 3.0.0 and still use the latest react-app-rewired and customize-cra packages like normal. I was able to add decorators and also Less support and both of them worked without a hitch. If problems do crop up later, I will update this post.
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75waytechnologies · 2 years
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Things to Consider When Hiring ReactJS Developers for Your Project
Websites and applications have become a crucial part of almost every business. After all, they act as a business’s virtual identity and have the power to attract a larger audience. Even experts suggest that having a good website or application can offer a business owner with maximum benefits in terms of revenue and profits. And for this reason, online businesses are now becoming more cautious when choosing the technology and developers for their projects.
React technology is quite a popular name in the tech world. Event ReactJS was also the second most loved web framework in 2020. So, now you know the right technology you should go with for the next project. But finding a suitable developer who can meet your product requirement is not easy. In this case, this blog can help you as here we have covered essential factors you should consider while hiring React developers. But before we delve into this, let’s skim through the introduction of ReactJS.
An Introduction to React JS
ReactJS is an open-source JavaScript library used for UI building and fixing issues of web pages. This technology also works best for single-page app development. Today, several tech giants, including   Instagram, Amazon, Facebook, Netflix, etc., set a perfect example of how beneficial it is to use React for their projects.
Around 9,600,000+ live websites and 10,234 well-known companies globally are currently using this technology and enjoying the benefits associated with it. Although many platforms can create UIs, ReactJS is the most used framework. According to the Builtwith study, ReactJS is the 6th most demanding among the top 10,000 websites in the JS Library category.
But why do people say yes to React when they have several options? The ease of use, fast rendering, convenience, creation of user-friendly interfaces, and higher flexibility are the benefits that make it an ideal choice for many. This framework has the potential to create a high-functional web app. So, it can be your next great choice for your upcoming projects. But at the same time, it is imperative to consider different aspects when hiring a React developer.
7 Skills to Consider When Hiring ReactJS Developers
Seek the developer who has the below-listed necessary skills to meet the essential duties and perform result-oriented jobs.
1. EcmaScript and JavaScript
The ReactJS developer you are hiring must have knowledge of JS features, functions, and syntax with a good experience in DOM manipulation, JavaScript scopes, event bubbling, and hoisting. Besides this, having a good understanding of EcmaScript is a bonus that will help create spontaneous React applications.
2. JS Build Tools
Hire front-end developers, well-versed in different JS tools, Redux DevTools, and React developers tools - Google Chrome. They should know how to maximize the React library and deal with several build tools like Visual Studio Code, Webpack, NPM, etc. Not only this, but they should also be aware of how to install and handle packages, optimize workflows, and control dependencies using JS Build tools.
3. Multiple Technologies
Go for the developer having a good command over multiple technologies compatible with ReactJS like the MERN stack. Plus, the knowledge of MERN Stack and Express-React combo is necessary in order to deal with server load, manage requests and create full-stack JS applications.
4. Version Control Systems
When handling or hosting a tricky project, it is imperative to hire a ReactJS development team, having expertise in VCSs like Mercurial, SVN, Firebase, TFS, Git, etc. Hiring developers, having such skills makes comparing old-new code, asset current code and reducing possible errors rapidly.
5. Technical Expertise
The React developer must have technical expertise in areas, ranging from JSON to advanced HTML and HTML5, ESLint to Scsslint. They must be proficient in different React core concepts such as class, functional components, props, JSX, component lifecycle methods, hooks, etc.  
6. Testing Tools and Frameworks
When hiring ReactJS developers, make sure they are proficient in using unit testing frameworks and technologies like Tape, Jest, Chai, Sinon, Mocha, etc. Developers should know how to integrate testing tools like Karma along with a good command over end-to-end testing tools and frameworks like CucumberJS, Selenium, WebDriver work, NightwatchJS, and Puppeteer.
7. React Basics and Styling Methods
When hiring a React developer, make sure you have asked the candidate about Create React App and its functions. They must know about Create React App and must be experts in technologies like NextJS, Babel, JSX, etc.
Furthermore, they must be proficient in popular CSS techniques like CSS preprocessors (LESS, SASS, and SCSS), CSS-in-JS, JSS, and CSS frameworks (Bootstrap and MaterialUI) to style React components.
Factors to Consider While Hiring the Best ReactJS Developers
Once you know what skills a React developer should have, the next thing is to consider a few more crucial factors to choose the best-fit one. Check out the below-listed points for more information.
1. Decide Basic Goals and Requirements
First, determine the basic requirements and goals of your projects you want to meet by hiring a professional React developer. The hiring process will become a little less complicated when you have a clear idea about this. It will also help you know if your project requires in-house team support or if outsourcing the tasks is enough.
2. Shortlist Developers
Once you gain clarity about your project goals, the next thing you should do is to select the right ReactJS developers by taking a look at their resumes. Shortlist the one that perfectly matches your project requirements and can deliver the results you desire.
3. Ask for Portfolios
A portfolio can help you take a glance at the past projects of the developer he successfully finished. Checking their portfolio can help you understand whether you should go for hiring the developers you’re interviewing or look for other alternatives. Do not forget to verify the genuineness of the portfolio.
4. Analyze Technical Skills
Before you say yes to any developer or company, make sure you have assessed their technical skillset. It will help you know whether they have good knowledge and expertise to complete your project successfully.
5. Discuss Your Project Requirements
Discussing your project requirement with the ReactJS development company or developer you’re interviewing will help you know how they will work on your project and learn more about their way of doing work.
6. Flexible Engagement Models
Another thing you should be sure about hiring an organization or a developer is that they should be flexible enough to change the engagement model according to your business requirements. Not only this but make sure you have asked about the tools or strategies they use to accomplish the whole development process. Some companies offer full-stack services, whereas others focus on a particular service.
7. Review and Compare Offers
Compare all offers and proposals across different companies or developers you’ve interviewed. It will help you find the right one that not only fits your budget but also promises to deliver you the best result you strive for.
Final Words
ReactJS is one of the most commonly used frameworks these days and there are many companies or developers out there promising to deliver you outstanding services? Whom you trust? This blog might help you choose the right React developer for your project. With a suitable organization, you can get a high-performance digital product. So, if you’re looking for the best ReactJS development company, connect with 75way. We can help you enjoy all benefits associated with this technology.
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codehunter · 1 year
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React.js - Communicating between sibling components
I'm new to React, and I'd like to ask a strategy question about how best to accomplish a task where data must be communicated between sibling components.
First, I'll describe the task:
Say I have multiple <select> components that are children of a single parent that passes down the select boxes dynamically, composed from an array. Each box has exactly the same available options in its initial state, but once a user selects a particular option in one box, it must be disabled as an option in all other boxes until it is released.
Here's an example of the same in (silly) code. (I'm using react-select as a shorthand for creating the select boxes.)
In this example, I need to disable (ie, set disabled: true) the options for "It's my favorite" and "It's my least favorite" when a user selects them in one select box (and release them if a user de-selects them).
var React = require('react');var Select = require('react-select');var AnForm = React.createClass({ render: function(){ // this.props.fruits is an array passed in that looks like: // ['apples', 'bananas', 'cherries','watermelon','oranges'] var selects = this.props.fruits.map(function(fruit, i) { var options = [ { value: 'first', label: 'It\'s my favorite', disabled: false }, { value: 'second', label: 'I\'m OK with it', disabled: false }, { value: 'third', label: 'It\'s my least favorite', disabled: false } ]; return ( <Child fruit={fruit} key={i} options={options} /> ); }); return ( <div id="myFormThingy"> {fruitSelects} </div> ) }});var AnChild = React.createClass({ getInitialState: function() { return { value:'', options: this.props.options }; }, render: function(){ function changeValue(value){ this.setState({value:value}); } return ( <label for={this.props.fruit}>{this.props.fruit}</label> <Select name={this.props.fruit} value={this.state.value} options={this.state.options} onChange={changeValue.bind(this)} placeholder="Choose one" /> ) }});
Hide results
Is updating the child options best accomplished by passing data back up to the parent through a callback? Should I use refs to access the child components in that callback? Does a redux reducer help?
I apologize for the general nature of the question, but I'm not finding a lot of direction on how to deal with these sibling-to-sibling component interactions in a unidirectional way.
Thanks for any help.
https://codehunter.cc/a/reactjs/react-js-communicating-between-sibling-components
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helenruth · 1 year
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How Can React JS Development Services Help Businesses Create Scalable And High-Performance Web Applications?
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So you have decided to create a high-quality web application and now evaluating different technologies. 
Look no further! React JS, a popular JavaScript library, is here to revolutionize how you build web applications. With its exceptional capabilities, React JS enables entrepreneurs to create interactive, user-friendly, and blazing-fast web applications that elevate their online presence and drive success.
But to fully leverage its potential, you should have reliable React JS developers on your team. These teams can help you harness the true potential of this innovative technology and create visually stunning web applications.
Let’s understand some of the leading benefits of React JS and why it is preferable for every type of business.
Top 5 Ways How React JS Development Services Can Help Your Business
1. Improved User Experience
React JS helps create efficient, dynamic UI components that allow seamless and responsive interactions. As a result, improving the user experience and increasing customer engagement & conversions.
Additionally, it has a wide range of user interface components that are responsive & dynamic and can be easily integrated into web applications. Which helps to provide a consistent and familiar user experience across different pages and applications.
2. Popular Libraries
It is one of the foremost reasons for choosing React JS development services for your web applications. React JS has a rich ecosystem of third-party libraries that can enhance development productivity and enable the creation of scalable web apps. For e.g., Redux for state management, Axios for making API calls, React Router for handling routing, and Material-UI for UI components
These libraries help streamline development processes, promote code reusability, and enhance performance. 
3. Code Reuse and Maintenance
React JS allows for the development of reusable components, which can be easily integrated across different parts of a web application, saving time and effort in the development process.
Also, its modular approach allows React JS developers to fix bugs, update features, and add new functionality without disrupting the entire application, ultimately simplifying the maintenance. 
4. Reusable Components
The React web application consists of multiple components. For example, developers can begin coding with essential elements like a dropdown menu, checkbox, or button and then use these elements to create more substantial parts.
As a result of reusing these components, each with its own logic and controls, the application's development time can be reduced.
5. Best Option for Large-Scale Web App Development
With React, developers can create large web applications using JSX (JavaScript Syntax Extension). 
The JSX syntax enables JavaScript to be optimized for optimal performance.
With React, you can build fast, scalable, modular, and simple web applications. Additionally, it can be combined with other JavaScript libraries and frameworks. 
Final Thoughts
React JS development services offer businesses a powerful tool to create web applications that are scalable and high-performing. The flexibility and efficiency of React JS allow for seamless user interfaces, improved performance, and enhanced user experiences. By leveraging React JS development services, entrepreneurs can build robust web applications that deliver exceptional performance across various devices and platforms. 
With its extensive ecosystem of libraries, tools, and community support, React JS empowers businesses to stay at the forefront of web development.
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