babel transpiler

still want to prepare for low-level IE) and react JSX syntax need to be converted. The following are configured for both syntaxes.V. Configuration BabelBabel is a good JavaScript compiler (this is from the Babel website), through the Babel of some plug-ins, you can convert JSX syntax, ES6 syntax to ES5 syntax, so that the lower-level browser can also run the code we write.(1) Installing

the webpack.config.js. touch webpack.config.js Its basic code is as follows: module.exports = { entry: './src/index.js', //webpack的入口文件 output: { //输出目录配置 path: __dirname + '/dist', publicPath: '/', filename: 'main.js' }, devServer: { //开发时服务器的配置 contentBase: './dist' }}; According to Custom, src/index.js is our default entrance. After the package is finished, generate a main.js to the Dist directory. After configuring the Devsever, we can access the files under Dist in the bro

. It's 2016 years now, you should definitely use React. Oh, well, what's React? React is a very powerful library, written by Facebook's cattle people. It makes the page more controllable, extremely high performance, and easy to use. It sounds really good. Can I use React to show the data coming from the server? Of course, you just need to add two dependencies, one is React, one is React DOM Well, wait a second, why is two libraries? React is the library

use React. Oh, well, what's React? React is a very powerful library, written by Facebook's cattle people. It makes the page more controllable, extremely high performance, and easy to use. It sounds really good. Can I use React to show the data coming from the server? of course, you just need to add two dependencies, one is React, one is React DOM Well, wait a second, why is two libraries? React is the library I'm talking about, and React Dom is used to mani

a file with the following code:GULP.SRC ("Src/**/*.js"). Pipe (Gulp.dest ("dist")); Read all JS under SRC, write to dist directoryEach operation of the gulp returns a Stream object, and all operations are performed in memory without the need to manipulate the disk, which greatly increases the build speed.8.3.2 Preprocessing tasksIn the previous section, the installation, configuration, and definition and execution of the grunt task are described in gulp. This section describes compiling E

Rollup.config.dev.jsRollup also supports the use of plug-ins, written to the configuration object plugin, here we take Rollup-plugin-babel as an example:Import Babel from ' Rollup-plugin-babel 'default { ' src/main.js ', ' CJs ' , plugins: [Babel ()], ' rel/bundle.js '};Rather uncomfortable,

Gulp pitfall series (4) -- code conversion of gulp, gulpFinally, I entered the topic. It was just to convert Sass and SCSS code into CSS that I suddenly jumped from the learning path of Sass to the big pitfall of gulp. Of course, gulp can not only convert Sass, but here we will mention the following conversion:First, create a new folder, and then proceed with the same method as before, in the folder Npm init, Npm install -- save-dev gulpAfter installing gulp, we also need to install several plug

can try react. After all, this is 2016. Q: Well, what is react? A: This is a very good front-end library from Facebook. It can help you easily respond to interface events and ensure project-level controllability and proven performance. Q: It's good. Can I use react to display data? A: Yes, but you need to add the react and react Dom dependencies to your page. Q: Wait, isn't react a library? Why add two dependencies? A: Don't worry. The former is the core react library, and later is the a

: NAME Specifies the package name, and the package name cannot be duplicated with the existing package name when the package is published. You can see if the package name already exists by using NPM info packagename before publishing. Main specifies the file that is loaded by default when the package is loaded. Files specifies the file that needs to be published when the package is published. In general,. Git, node_modules, test and other files should not be published to the NPM

Install Babel and The Presets:npm install --save-dev babel-core babel-preset-es2015 Install babel-loader :npm install --save-dev babel-loader Configure Babel to use these presets by adding.babelrc { "presets": [ "es2015" ] }

Standard Time ) Do other things, Wed June 11:09:08 gmt+0800 ( China Standard Time ) Precautions 1. the asyncawait module internally references the Bluebird module . 2. no need to compile to Es5, can be run directly . UseES7Draft How to use:1. To install the node module, a series of modules are required: a) babel-clib) babel-preset-es2015 "c) babel-

useUsing ES6# npm install babel-loader --save-dev安装转码规则： # npm install babel-preset-es2015 --save-devES7不同阶段语法提案的转码规则（共有4个阶段），选装一个# npm install --save-dev babel-preset-stage-0# npm install --save-dev babel-preset-stage-1# npm install --save-dev babel-preset-stage-2# n

Look at the routine excavator, do not see the old driver. This is a boilerplate1. Create a new project directory folder, called seedCD SEEDNPM InitThen always enter, last yes, and eventually generate a Package.json file2. Create the following src folder for storing source code and referenced static files such as Js,css,img . BABELRC Babel Compiler configuration file Favicon.ico an icon that is read by default in the browser Index.

to say that the start is very easy, but the actual problem encountered is not so easy, then we look at a real problem encountered, directly read the log:Debug] [ADB] We tried to start a activity that doesn ' t exist, retrying with. prepended to activity[Debug] [ADB] Device API level:19[Debug] [ADB] Getting Connected devices ...[Debug] [ADB] 1 device (s) connected[Debug] [ADB] Running '/users/ytxu/library/android/sdk/platform-tools/adb ' with args: ["-P", 5037, "-S", "127.0.0.1:62001", "Shell",

The simplest webpack configurationConstPath = require ('Path') Module.exports={entry:'./app/index.js',//Entry Fileoutput: {path:path.resolve (__dirname,'Build'),//must use absolute address, output folderFileName"Bundle.js" //filename of the output file after packaging }}Webpack command ConfigurationAdd code to Package.json" Scripts " : { "build""webpack",} You can then use npm Run build to start Webpack for packagingAuto Refresh webpack-dev-serverNPM Install Webpack-dev-server--save-devModi

‘], function (jQuery, _) { return factory(jQuery, _); }); } else if (typeof exports === ‘object‘) { // Node.js module.exports = factory(require(‘jquery‘), require(‘underscore‘)); } else { // Browser globals root.Backbone = factory(root.jQuery, root._); }}(this, function (jQuery, _) { var Backbone = {}; // Backbone code that depends on jQuery and _ return Backbone;}));You can see why this is not popular, it is too scary, no one will write, look at it, I just want to curse.