轉碼器babel
阿新 • • 發佈:2018-01-25
blog 6.0 post port rip babel package dev set
一、配置文件.babelrc,存放在項目的根目錄下
1)配置文件.babelrc
{ “presets": [ //presets字段設置轉碼規則 "es2015" ], "plugins": [] }
ES2015轉碼規則
npm install --save-dev babel-preset-es2015
2)命令行轉碼babel-cli安裝在項目中
npm install --save-dev babel-cli
改寫package.json
{
"devDependencies":{
"babel-cli": "^6.0.0"
},
"scrippts": {
"build": "babel src -d lib"
}
}
轉碼的時候執行 npm run build 命令
3)babel-poolyfill插件
npm install --save-dev babel-polyfill
import "babel-polyfill"
webpack.config.js中:
modeule.exports = {
entry: [‘babel-polyfill‘,‘./app/js‘]
}
轉碼器babel