Learn modern JavaScript from 7 expert authors – EdgeCoders

  • Learn modern JavaScript from 7 expert authors40 hours of video, 1000+ pages of guidance, 7 authors, the best ways to build modern JavaScript apps is hard.
  • Whether it’s web or native, it doesn’t matter.
  • What’s Redux again?Where do you even begin?If you’re like most, you start at a random spot that piques your interest.
  • Then you read a bunch of random blogs and Stack Overflow answers and Readme files on GitHub and voilĂĄ, 10 years later, you’re a pro.😅That’s why this holiday season I got together with 6 other expert JavaScript authors and designed a coherent learning journey.
  • Self-paced learning from 7 expert authors who will answer your email if you have a question.You start with the basics of modern JavaScript, continue with React and Redux, learn all about the modern build tools, follow it up with native apps, build some shiny examples that would make your mom…

Learning the best ways to build modern JavaScript apps is hard. Whether it’s web or native, it doesn’t matter. There’s just so much you have to learn. ES6, ES6+, 2016/2017. Why do people say…
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Creating a chat web app using Express.js, React.js & Socket.io

  • Implementing Send Message functionalityLet’s go back to our Client’s Chat.js Component and add the following functionality to our button:Now let’s create this.sendMessage function:in Constructor add the following:Great.
  • You are now sending the message to the server every time you click ‘Send Message’, and then your message input is cleared so you can write another message.
  • All we have to do now is tell the server to emit the message to everyone who’s socket is connected to our server.In app.js on the server side add the following code:What we are doing here is that we are emiting the info we received from the client (author and…
  • Now all that’s left to do is to catch that emit on the client side and add the message to our messages array.Back in the Chat.js component on the client side add the folloing in the constructor:I will now post how all the files should look like:Chat.jsapp.jsThis function will catch…
  • We already implemented a messages.map functionality so now every time you add a message you should see it in your chat.

In this article I will be creating a chat web app using Express.js, React & Socket.io. I will be using Bootstrap for styling. You will see how the final files should look like in the end. We will now…
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Implementing redux and react-router v4 in your react app

  • Then we created our main reducer function inside it, we checked for different action types and updated our reducer state accordingly.
  • Let’s install redux-thunk

    Let’s edit our index.js to make use of our new redux store.

  • Inside your project directory

    Input preview is a component which will render an input component which on update will update our reducer message.

  • let’s pass an onChange function to input tag inside your App.js create a method called _onChange

    Above on every onchange, we dispatched setMessage action with the new value of our input tag.

  • So in above code, we called the _onChange function on every change to update the value of message in reducer.

Okay so without further ado let’s start by installing redux and react-redux into our project…
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Redux Devtools for Dummies – tyler clark – Medium

Redux Devtools for Dummies  #react #development #testing #redux #javascript #reactjs

  • In my opinion, this is the most robust and easiest to set up.npm install –save redux-devtools-extensionimport { composeWithDevTools } from ‘redux-devtools-extension’; into the store file.Finally compose your store with the imported module:import { composeWithDevTools } from store = createStore(reducer, composeWithDevTools( // other store enhancers if any));I recommend using this option over the others because it helps avoid issues with isomorphic applications.
  • Check out the additional features you can add and remove to the console hereHere is how one would add in those customized features:import { composeWithDevTools } from composeEnhancers = composeWithDevTools({ // Specify custom devTools options});const store = createStore(reducer, /* preloadedState, */ composeEnhancers( // other store enhancers if any));Also, if you do not have enhancers/middleware in your application, there is a more straight forward approach:import { devToolsEnhancer } from store = createStore(reducer, /* preloadedState, */ devToolsEnhancer( // Specify custom devTools options));Notice that we are using devToolsEnhancer here rather than composerWithDevTools.
  • If you installed everything correctly in your store initialization, it will show you something like this:If there is an error in your set-up, including exceptions thrown from your code, you will see this:Let’s break down whats happening in each section of the dev tools.Left-Side Console ToolsThe left hand column of the dash is showing in real time the actions that are firing on the current page (as defined by the action creator types).
  • The skip will cross out the action and show you your app without that action.Right-Side Console ToolsThe four tabs at the top right are in my opinion the most helpful of the tools.DiffThe right side of the console has multiple options to see the state of the application and the relation of each action to the state.When an action is selected in the left hand side of the console, the Diff option will show only what that individual action changed in the state tree.ActionClicking on the Action tab will show the individual action type and any data it is carrying along to the reducers.In the example above, this action has a type features/FETCH_SUCCESS and also carries data, the requested features to the reducer.
  • Including all of the combined reducers and their corresponding data branches.The Raw tab shows the action creator in a code view.StateThe state tab shows the entire state tree at the time of the action selected in the left hand side of the console.TestBack to the upper tabs, there is a test option.

Do you take one look at the docs and just give up? Did you know that you can completely control the currently running application’s actions/state through these tools? The first step is the easiest to…
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ReactJS Authentication Tutorial, Part 2

ReactJS Authentication Tutorial, Part 2  #web_dev #front_end #cli #reactjs #Programming

  • The component is pulling data from an API, so it needs a way of holding that data.
  • In the constructor, we define the initial state as seen in the code below:

    In the method, we call the method we exported from the helper file and set state as seen below:

    Now, we took advantage of one of the ReactJS lifecycle hooks, .

  • So, we invoked the method in the hook as seen below:

    All we are trying to do is tell ReactJS to load the data from the API immediately when the component gets rendered.

  • Finally, we rendered the component with the ReactJS method.
  • This renders the root component in the div, which is the starting point of our ReactJS application.

We continue our series on creating an authenticated ReactJS application by looking at how to setup our front-end with the help of Facebook’s CLI tool.
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Waterkant 2017: Modern WebDevelopment with ReactJS

Join @kaoDev to lear @reactjs at #waterkant17 #pureskills

  • Build your own chat app with modern JavaScript in your browser.
  • The focus is on ReactJS, a JavaScript library

    by facebook to render user interfaces in the browser.

  • To allow an easy start you can use a cloud workplace with a completely

    set up development environment.

  • If you have experiences with git and

    NodeJS you can checkout the project from GitHub and work locally, too.

  • Next to your Notebook you should bring a little bit of general software development experience, but no experience with react is needed.

View more about this event at Waterkant 2017
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Build ReactJS App with Visual Studio Code

Build #ReactJS #App with #VisualStudio Code by @thinkaboutnitin cc @CsharpCorner  #VS2017

  • In this artilce, I will introdice Visual Studio Code and how to get it ready to setup to build React apps.
  • The first step is to open React app in Visual Studio Code.
  • Once your React app is open in Visual Studio Code, you will find some directories in left corner.
  • By default, when we run ReactJS app, we get the above web page in our browser.
  • So, go ahead and build your React app with the help of Visual Studio Code.

Explore ReactJS App with Visual Studio Code.
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Intro to React.js – Agata Krzywda – Medium

  • Intro to React.jsFor the past few months I have been learning react.js by doing a lot of online courses, tutorials, going to workshops and most recently attended to awesome react flipflops course run by Maciej Nowakowski.I learnt a lot on the way and now I am putting together this tutorial with the aim of it being the one tutorial I wish I had when I first got started.This is a introduction tutorial of my series of ’’intro to React.js’’.
  • Editing text on the pageOpen App.js this is your main react component.
  • Create new componentCreate new file in src folder call MyComponent.jsThis is a simple component which says ‘Hello World!’
  • To use that component in App.js we need to import it at the top of the file.import MyComponent from ‘.
  • Using state and methodsIn class components for example App.js we can use state to store informations about our component.State is an object and can give it initial values in constructor, e.gthis.state = { isOn: true };You can access to state in render method using this.state for example if we want use isOn property we get it from this.state.isOnThe button text is determined by the current value isOn property.button{ this.state.isOn ?

For the past few months I have been learning react.js by doing a lot of online courses, tutorials, going to workshops and most recently attended to awesome react flipflops course run by Maciej…
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React Animations 101: CSS transitions – Bjorn Holdt – Medium

React Animations 101: CSS transitions  #javascript #animation #css #react #reactjs

  • Examples with React and CSS transitionsHow do we use CSS transitions in react?Progress bar example (Codepen)Let’s start off with a progress bar first.
  • progress { transition: width 100ms ease-in-out;}Without CSS transitions whenever the progress bar updates, it would expand to its new width immediately.
  • In this case, when the navigation bar is visible the slideIn class is applied, when it is not visible the slideOut class is applied.The Navigation Bar Component (on codepen)const Navbar = ({ visible }) = ( div id=”navbar” className={visible ?
  • slideIn { transform: { transform: translateX(-220px);}Codepen exampleWe use the transform property in CSS to position the navigation bar.
  • slideOut will move the element completely out of view again.With the CSS transition, we tell the browser whenever there is a change to the transform property (in this case when the element’s position is changed), animate the change over 400ms.

If you were to follow my learning path to get a navigation bar animation working with react, you will end up with a combination of react-motion, ReactCSSTransitionGroup, yet-another-react-animation…
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