react-es6 | React 's official tutorial with ES6 and Browserify | Script Programming library
kandi X-RAY | react-es6 Summary
kandi X-RAY | react-es6 Summary
React's official tutorial with ES6 and Browserify
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QUESTION
I am using MaterialUI
to build component Expanded
, where inside I have list of text fields.
I store data in redux.
...ANSWER
Answered 2020-Feb-09 at 01:17Each time you type a character in the input the onChange is being called, which updates props, and your component is composed with props, so React re-renders it, which make the field lose focus. Try changing the event handler to onBlur or something, if you can.
Current chain of events:
- Use props to render component
- Component renders input field
- You type and onChange is triggered
- Your onChange is passed up to the parent and props is updated
- Props is used to render the component again.
QUESTION
ANSWER
Answered 2018-Feb-21 at 14:26It's because the tag
document.getElementById('test')
runs it returns an undefined
object and undefined
is not a DOM element.
QUESTION
I have used webpack ^2.2.1. I have added some loaders In my webpack.config.js file.
But my loader have not call in an order.
I used babel-loader for transform react-es6 codes to react-es5 codes. My custom-loader need react-es6 code. So I put my loader to first. I have print source content in each loaders. But every time first printing babel-loader info. After printing my info.
Is my loader order correct?
Help me! Thanks in advance!
...ANSWER
Answered 2017-Aug-18 at 08:54Loaders in Webpack are used in order "right to left" so the last loader in your array is used first. Therefore babel is translating everything and your loader is second in line.
See: What is the loader order for webpack?
Try switching the order of your loaders (and of course use module.rules instead of module.loaders, so that you are using the new Pattern in Webpack 2)
QUESTION
this isn't directly based off of this tutorial: (YouTube) ReactJS Basics - #2 Setup Workspace with Webpack
(All of the listed tutorials are respectively hosted on GitHub.)
but I have been trying to create a local React JS Environment where I can practice coding on a Mac. (The ultimate goal would be getting my files up to GitHub and publishing them through Heroku so that I can share whatever it is that I work on.)
I have used this tutorial: https://www.kirupa.com/react/setting_up_react_environment.htm - Everything seemed to work, but I couldn't host the files to Heroku due to some npm error.
In any case, I am now considerably confused because supposedly the index.hmtl / index.jsx files are "packaged" into a "myCode.js" file in output and this is what the browser sees. (I was assuming this is something that Webpack does, since it is supposed to "bundle" things... Now I am not so sure.)
However I was under the impression that If I was to change the code in the index.jsx file, that this myCode.js file would also update... but that is NOT the case. There is a function in there that causes the code from the tutorial to continue being displayed.
I noticed that this Input vs. Output Folder is really a thing in most Web App setups, therefore I need to understand what is happening here.
Here's the other thing: I have downloaded the finished Set-Up Files from: https://blog.hellojs.org/setting-up-your-react-es6-development-environment-with-webpack-express-and-babel-e2a53994ade and also from this tutorial (above)... when I open the index.html file, nothing shows up in my browser.
Am I missing something? I am looking for a way to say, use one set-up to continually practice and build tutorials and then when I am ready, clear out the main working files and create a little test app from scratch... Preferably as if I was working on something real (so that means with a database or some "database substitute").
I hope to limit my base structure predominately to: Node.js, React, Webpack & Babel
I am new to all of this, so any help would be greatly appreciated. I really just want to get to the coding.
Also I had some issues with npm. It's straight forward when following the first tutorial, but as soon as I already had a few things installed, I started having issues. It seems to be something to do with global vs. local files, but honestly I just want to use things like npm and git quickly as tools and not have to know them from the ground up... as learning the rest is already enough of a challenge.
Does anyone know of a source where I can just copy, paste and get in and code?! Because the tutorials above aren't making sense for me.
Thanks, April
...ANSWER
Answered 2017-May-30 at 11:34A few things happen, since browsers don't support ReactJS syntax and neither do they support ES6 (newer version of JS) your code need to transpile your react and ES6 code to ES5. Babel transpiles it to ES5 and webpack bundles your modules.
Node.js Its just JS for server side. You have to install it on your computer to be able to run JS code locally.
NPM Npm is the package manager for JavaScript. You use this to download and install packages (for example react).
Webpack Webpack is a module bundler which takes modules with dependencies and generates static assets by bundling them together based on some configuration.
Babel The babel-preset-es2015 and babel-preset-react are plugins being used by the babel-loader to translate ES6 and JSX syntax respectively so your browser can interpret them.
The support of loaders in Webpack makes it a perfect fit for using it along with React.
I suggest you follow the offical docs which have very easy to follow step by step instruction:
Start here:https://facebook.github.io/react/
QUESTION
Apply all operations from the instruction :
Start the React Native Server. Done. It successfully listenings port 8081.
Prime the Debugger (From the Command Palette, launch "Nuclide React Native: Start Debugging"). Done.
Enable Debugging from the Application - select "Debug JS Remotely". Done.
"...After you enable debugging from the simulated application, Nuclide will attach to that debugging process automatically, since we primed the Debugger above..." BUT it does not start/work!
Atom version 1.15.0
Nuclide plugin version 0.209.0
React Native version: 0.42
Platform(s) (iOS, Android, or both?): iOS
Device info Simulator/Device? - Simulator iOS 10.2 / iOS 8.1
OS version? - MacOS 10.12.3
Debug/Release? - Debug
$ apm ls --installed Community Packages (17)
├── atom-beautify@0.29.17
├── atom-react-native-autocomplete@0.0.27
├── atom-react-native-css@1.1.3
├── busy-signal@1.3.0
├── file-icons@2.0.17
├── flow@0.5.3
├── intentions@1.1.2
├── language-babel@2.56.2
├── language-javascript-jsx@0.3.7
├── linter@2.1.0
├── linter-ui-default@1.2.1
├── minimap@4.26.8
├── nuclide@0.210.0
├── react-es6-snippets@0.3.0
├── react-native-snippets@0.3.0
├── react-snippets@0.7.2
└── redux-snippets@0.2.2
So, my application works fine, packager/React Native Server works fine, I successfully see my logs in Chrome dev tolls, BUT Nuclide debugger does not work/start, it still in "Starting debugger mode"
May be someone have any ideas what I'm doing wrong? Thanks.
...ANSWER
Answered 2017-Mar-18 at 19:42Start the debugger before you start the iOS simulator so that the simulator doesn't open a Chrome debugger which will hog the port.
To expand on that a little, I was getting the exact same experience and what was happening was that when I started the iOS Simulator it was opening a Chrome window for debugging. This happens if the Nuclide debugger isn't already running when debugging is enabled in the simulator.
QUESTION
I am trying to reduce the size of react project for production by following this article http://moduscreate.com/optimizing-react-es6-webpack-production-build/. Unfortunately, some of the steps do not work. One of them is webpack.DefinePlugin, in webpack outputs the error that webpack.DefinePlugin cannot be defined. Maybe, it is because I build the project as in develoment and now i want to move it to production. Maybe, I had to create the project in production initially? Or anyone knows the better way to reduce the size of the project?
webpack.config.js
...ANSWER
Answered 2017-Feb-22 at 10:38Try
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