transform-class-properties mainly solves the problem that is not supported by defaultProps= {} in the declaration of using class in es6.
needs to be escaped using stage-0 or the plug-in.
< H2 > question: < / H2 >{
spec:true //false}
< H2 > reference: official original link. I don"t understand < / H2 >in fact, the subject can write a script and run for a while:
1.js
babel 1.js -o 1.false.js
babel 1.js -o 1.true.js // `spec`compare the two generated files, in fact, as written in the document:
when spec is true ,
title="a" with Object.defineProperty . cover ) are created even if they do not have an initial value. computer version of Safari, Firefox reports an error: Safari: chrome browser is completely normal, and no other browsers can be used. import { combineReducers ,createStore,applyMiddleware,compose} from redux import thunk from redux-thunk i...
1.weboack.config.js { test: .js$ , exclude: node_modules , loader: babel-loader , query: { presets: [ es2015 , babel ] } }, 2.common.js var font={ remFont:function(){ alert(1) } } export default...
babel-polyfill can make us happy to use es6 , es7 API , but often only part of these API are used in the project, and a babel-polyfill is compressed with a size of nearly 100k, which is really scary. for example, I want Promise to be used ...
the project can be started normally using webpack s devServer. After configuring ssr, css @ import reported an error express configuration import @babel polyfill import React from react ; import {renderToString} from react-dom server ; imp...