The Pros and Cons of ReactJS for your Online Business

The Pros and Cons of ReactJS for your Online Business  via @janlgordon

  • With React, it is possible for webmasters and online business owners to develop large web-based applications that change data while reloading pages.
  • Webmasters can also use React together with other forms of frameworks or JavaScript libraries like Angular in MVC.
  • It makes it possible to reuse components that didn’t produce changes, and this makes programming more comfortable and precise for online business owners.
  • The great news for webmasters is that Google might still find the React component when just the client-side is rendered.
  • ReactJS is a great framework for online business.

This isn’t quite a ReactJS guide for the layman. But it is a useful for business owners, if only to glean enough to know how to talk with your techie
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Express more tests via public API · Issue #11299 · facebook/react · GitHub

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react – A declarative, efficient, and flexible JavaScript library for building user interfaces.
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Controlled Forms in React – Byte-sized React – Medium

Controlled Forms in React  #tech #webdevelopment #programming #javascript #react #reactjs

  • Defining a form’s input value via state is considered a controlled component.For controlled inputs you will need a corresponding state and then a class method to update that state with changes.Let’s walk through a quick example with CodePen.
  • If you don’t know how to set up CodePen with React, you can check out this story.Let’s also add Boostrap 4 to our CodePen so our forms aren’t so plain.Add this to your JS file:class App extends React.Component { constructor(props) { super(props); } render() { return ( div className=”form-group container” labelControlled Form Input/label input type=”text” className=”form-control” aria-describedby=”emailHelp” placeholder=”Update input here” / large className=”form-text text-muted” Form Output /large /div ); }}ReactDOM.render( App /, your CodePen should look like this:Right now our form input is not controlled- meaning that the value of the form input is not determined by the state.
  • Let’s add a state value for the form making it a controlled form.Declare the state value in your constructor.constructor(props) { super(props); this.state({input: ”}); }Then let’s pass the state input value down to the value of the email form and as the value of our output text.input type=”text” className=”form-control” aria-describedby=”emailHelp” placeholder=”Update input here” value={this.state.input}/ large className=”form-text text-muted” {this.state.input} /largeNow notice how the value of the form reflects the state, but the form value doesn’t update.
  • Let’s add a method to update state, and pass it down using the onChange event handler.Add the method to your constructor.constructor(props) { super(props); this.state = ({input: ”}); this.formUpdate = define the formUpdate method.formUpdate(event) { this.setState({input: event.target.value});}The formUpdate function needs to be called whenever a change is made to the form input.
  • Use the onChange react event to trigger the formUpdate method.input type=”text” className=”form-control” aria-describedby=”emailHelp” placeholder=”Update input here” value={this.state.input} time a change happens to the form the formUpdate method will be called with the event object.

Form input values can be set to state values and then updated via React events. Defining a form’s input value via state is considered a controlled component. For controlled inputs you will need a…
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Learn how to build #reactjs + #graphql web apps with @VulcanJS in this webinar from @projectricochet: #meteorjs

  • Want to learn how to rapidly deploy web apps with Vulcan?
  • If you’d like a full-stack React and GraphQL solution for your next project, you should learn a bit more about Vulcan.

Have you heard about Vulcan, but aren’t sure what it is about? Join us to learn how it can help your company!
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React Ecosystem Setup — Step-By-Step Walkthrough – codeburst

#ReactJS Ecosystem Setup — Step-By-Step Walkthrough:

  • DOCTYPE htmlhtml lang=”en”head meta charset=”UTF-8″ meta name=”viewport” content=”width=device-width, initial-scale=1.0″ meta http-equiv=”X-UA-Compatible” content=”ie=edge” titleReact – Basic Setup/title/headbody div Express ServerRun npm install express.
  • It’ll recursively go through every dependency and the dependencies’ dependencies, resolving all the way down.It’ll transpile our farm-fresh, cutting-edge ES6+ down to ES5 so that it’ll work on virtually every browser.It’ll minify our code by removing whitespace and shortening variable names, reducing the final file size.In the end, we’ll be able to write modular, modern Javascript and CSS that we can work with easily and use best practices on.Getting StartedLet’s create a folder named src in our root directory.
  • DOCTYPE htmlhtml lang=”en”head meta charset=”UTF-8″ meta name=”viewport” content=”width=device-width, initial-scale=1.0″ meta http-equiv=”X-UA-Compatible” content=”ie=edge” titleReact – Basic Setup/title/headbody div you open up dist/app.
  • To make webpack minify your code, use the production flag, -p. Type in webpack -p and look at the bundle file.
  • js$/, exclude: [/node_modules/], use: { loader: ‘babel-loader’, options: { presets: [‘env’] } } } ] }};This code is telling webpack to test the files in our directory and look for the filenames matching the r

React is arguably the hottest framework currently used by the web development community at this point. Unfortunately, for newcomers and even more seasoned developers, setting up the industry-standard…
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React Ecosystem Setup — Step-By-Step Walkthrough

  • An issue with using a bundle instead of our source code is that it makes debugging more difficult, because the stack trace now refers to our bundle file.
  • Using the flag during development means webpack will watch our files and re-generate the bundle every time we save a change.
  • This code is telling webpack to test the files in our directory and look for the filenames matching the regex in the property.
  • Now we can use ES6 code and the bundle generated by webpack will contain only ES5 code.
  • We’ll have to add a term to our file to tell it that we’re writing React code.

Understand what React, Webpack, and Babel are doing and how to configure them yourself.
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Simple Carousel in React Native – Binoy Patel

Simple Carousel in React Native  #reactnative #javascript #react #reactjs

  • First lets take a look at the code below which builds the carousel component.The carousel is nothing more than a ScrollView component.
  • There are three props that make this happen:Horizontal: As the name suggests, it makes it scroll horizontal instead of vertical.pagingEnabled: This scroll is based on the size of the view inside.
  • In our case, if we set the image width to the size of the view container, the scroll action will change to next Setting this to false, will hide the scroll bars.Inside the ScrollView we are mapping over the images props providing and returning images.
  • {images.map(image = ( Image style={styles.image} source={image.source} / ))}Finally we are wrapping it inside a View with a specific width and height, this is because when we are consuming this, we can place in a specific container instead of taking the whole page.
  • Note: To make this more reusable, it will be useful to provide props to override the width and height of the view.This concludes the tutorial on building a simple carousel.

In this tutorial we will be building a simple carousel. As a change we will be using snack to build this instead of setting a new react native project. Below is the final version of the application…
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