babel babel

First, the initialization of the project First make sure that your node version is >=4.0. And make sure yarn can work properly, about installing yarn, you can see here Let's create an empty folder first yarn-react-webpack-seed , for example, and then enter the command: Yarn Init Yarn If there is no installation, the full use of NPM replacement is no problem. The project initializes and package.json then fills in some basic information. Next we start to install the dependencies,

the knowledge you need to understand.Webpack Home: http://webpack.github.io/Environment preparationnode. js and Git are essential tools, and NPM's version is better than the 3.x version, NPM 3.x provides more efficient package dependency management.Before using these two project templates, you need to install the Vue CLI and execute the following command to install the Vue CLINPM install-g VUE-CLIAfter installing the Vue CLI, we can create the project based on the vue-webpack-simple template an

Due to the needs of the interview, first of several sources of element source learning blog. Vue source code will also continue to update. OK, now we're starting to learn element--'s most popular Vue UI framework. Package.json I think that to see a front-end project, you must first look at Package.json this file. Compile Entry Let's look at the compiled portal. "Scripts": { # Install dependent "bootstrap": "yarn | | NPM i ", # Build file " Build:file ":" Node Build/bin/iconinit

1). Create a new Mynew-react-web folder; 2). CD mynew-react-web; 3). NPM init, there will be a Package.json file at this time; Installation package dependencies:4). NPM Install Webpack webpack-dev-server--save-dev; 5). NPM Install Babel-core Babel-loader--save-dev; 6). NPM Install babel-preset-es2015 babel-preset-react

, yyy}Uniform exposure or exposure, in the introduction of the object must be used to deconstruct the form of assignment. Introduce the Use module:import Default Exposed modules:import xxx from ‘模块路径/模块名‘ Other modulesimport {xxx, yyy} from ‘模块路径/模块名‘import * as module1 from ‘模块路径/模块名‘ Problem:Some browsers also do not directly recognize ES6 's modular syntax.It needs Babel to be used to convert ES6 to ES5, but t

', // output file name, development environment directly fixed the output name },devserver:{Contentbase: './dist ',//Specify the location where the service is open, in the Dist folderHistoryapifallback:true,//Do not jump, very useful in developing a single page application, it relies on the HTML5 history API, if set to true, any 404 response may need to be replaced by index.htmlInline:true,//real-time Refreshport:8000,//default 8080proxy:{//Agent Properties"/api": {Target: ' H

": "1.3.1", "Vue-datasource": "1.0.9", "Axios": "^0.15.3", "Vue-core-image-upload": "2.1.5", "Mockjs": "^1.0.1-beta3", "Babel-polyfill": "^6.23.0" }, "Devdependencies": {//Devdependencies Sets the dependency on development use."Autoprefixer": "^6.7.2",//is used to automatically add attribute prefixes to the CSS3 property."Babel-core": "^6.22.1",//Babel

and written to Package.json "Devdependencies"; using ES6Install Babel-loader:Install // install and write to Package.json "devdependencies";To install a transcoding rule:Install babel-preset-es2015--save-install --save-dev babel-preset-stage-0 Install --save-dev babel-preset-stage-1Install --save-dev

need to install Webpack-dev-server, Then configure the service information in the Webpack.config.js file,Description of each parameterLoaders: Webpack Most powerful function is a variety of loader, through the use of loader different rules, Webpack can be very powerful to invoke a variety of external scripts, and can implement a variety of different formats of the file processing, such as convert less sass for CSS, ES6, 7 Convert to es5 that the browser can recognize, and convert the JSX in the

plug-ins available for use: compiling Gulp-sass-Compiling the sass into CSS via Libsass Gulp-ruby-sass-compiling sass into CSS via Ruby Sass Gulp-compass-compiled into CSS via Ruby sass and Compasssass Gulp-less-less compiled into CSS. Gulp-stylus-stylus compiled into CSS. Gulp-postcss-pipe CSS via POSTCSS processors with a single parse. Gulp-coffee-coffeescript compiled into JavaScript. Gulp-typescript-typescript compiled into JavaScript. Gulp-react-facebook react JSX template compiled into J

; } B/a.css . text{text-align:center;font-size:16px;font-weight:700} And then look at the JS compression var gulp = require (' gulp '); var uglify =require (' gulp-uglify '); Gulp.task (' Jsmin ', function () { gulp.src (' a/a.js '). pipe (Uglify ()) . Pipe (Gulp.dest (' B ')) }) The code doesn't go into detail, it's easy to see the results. function Person (name,age) { this.name = name; This.age = age; } Compressed function person (n,e) {this.name=n,this.age=e}

First, Nodejs installationI have related articles in my blog and I will not repeat them here.Second, the relevant module installationSome related modules need to be installed when using react:1, Babel　　NPM Install Babel-g--save-dev(where--save-dev indicates that the Babel module is placed under devdependencies of the current project's Package.json file, represent

", "Elm ”] Dependencies The production of this package relies on the automatic installation of these dependencies when the user installs your "Dependencies": {"react": "^15.1.0", "react-native": "^0.27.0-rc2"} Devdependencies This package is dependent on the development or testing phase and will not be packaged into the final production packages "Devdependencies": {"Babel-eslint": "^5.0.0", "Eslint": "^2

name is called:react_webpack_test Bar. Click OK to enter the interface. Then open the Preferences setting for Webstorm (Windows is file-settings), select Jsx Harmony in Languages Frameworks JavaScript column, click OK. reopen the command line, enter sudo npm install webpack webpack-dev-server Babel-gsudo npm install react react-dom babel-loader Less-loader css-loader style-loader url-loader file-loa

Today review the next Webpack common loaders, in fact, ES6 development, Webpack config.js Basic configuration should be relatively fixed:First of all, JS, we ES6 to convert to ES5, need to use Babel transcoding:1.NPM Install--save-dev Babel-loader babel-core2. Configure in Config.js:1 module: {2 rules: [3 {test:/\.js$/, exclude:/node_modules/, Loader: "

by loaders (must) Name of the Loader:loader (required) Include/exclude: Manually add files (folders) that must be processed or block files (folders) that you do not need to process (optional); Query: Provides additional setup options for loaders (optional) Pretreatment of Loaders Css-loader handling issues such as path references in CSS Style-loader dynamically writing styles to CSS Sass-loader Scss Compiler Less-loader less compiler Postcss-loader scss

-devChange the webpack.config.js.......Module.exports = { ' cheap-module-eval-source-map ', entry: [ ' Babel-polyfill ', ' react-hot-loader/patch ', ' webpack-dev-server/client?http://localhost:8080 ', ' Webpack/hot/only-dev-server ',......Change the index.js.......Import {Appcontainer} from ' React-hot-loader '; import ' Babel-polyfill ';'. /app '= Component = { render

://localhost:3000", Pathrewrite: {"^/api": ""}, Bypass:function(req, res, proxyoptions) {//Agent Filter Function return""}}}, plugins: [NewHtmlwebpackplugin ({//Configure source HTML to generate new HTMLTemplate:path.resolve (__dirname, ' src/index.html ')) }) ]}2, Configuration LoaderA, install JS processing package: Babel-loader Babel-ccore

it again, with NPM Scripts.Let me start with a brief introduction to NPM Scripts. Take a look at the code First.{"name": "app", "version": "0.0.1", "private": true, "main": "./bin/www", "scripts": {"clean": "rm-rf Client/di st/* "," copy ":" rsync-a--exclude=*.html--exclude=*.jsx./client/src/*.*./client/dist "," start ":"./bin/www ", "server": "node server.js", "build": "npm run clean webpack--config webpack.config.pro.js npm ru N Copy node qiniu.js "}," dependencies ": {"

of plug-ins, remember that these plugins are also downloaded in node. js, we just need to enter the command to download it.Plugin One: npm install--save-dev babel-core babel-loader babel-preset-es2015 babel-preset-reactPlugin II: NPM install--save-dev style-loader css-loaderInstalling WEBPACK:NPM Install--save-dev Web