babel 7

Babel7 babelrc文件设置和常用插件

Posted by ZSJ on March 28, 2019

Babel7 babelrc文件

{
    "presets": [
        "@babel/preset-env",
        "@babel/preset-react"
    ],
    "plugins": [
    [
        "@babel/plugin-proposal-decorators",
        {
        "legacy": true
        }
    ],
    [
        "@babel/plugin-proposal-class-properties",
        {
            "loose": true
        }
    ],
    ["@babel/plugin-syntax-dynamic-import"],
    ["@babel/plugin-transform-runtime",
    {
        "regenerator": true
    }
    ]
    ]
}

presets部分:

@babel/preset-env

npm install --save-dev @babel/preset-env

不再需要设置ES版本，直接使用@babel/preset-env就可以自动编译

@babel/preset-react

npm install --save-dev @babel/preset-react

针对react使用

plugins部分

@babel/plugin-proposal-decorators

npm install --save-dev @babel/plugin-proposal-decorators

针对ES7的decorator

@babel/plugin-proposal-class-properties

npm install --save-dev @babel/plugin-proposal-class-properties

针对ES7的类属性

@babel/plugin-syntax-dynamic-import

npm install --save-dev @babel/plugin-syntax-dynamic-import

针对动态导入

@babel/plugin-transform-runtime {“regenerator”: true}

npm install --save-dev @babel/plugin-transform-runtime
npm install --save @babel/runtime

针对async, await生成regenerator函数

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