0.0.26 • Published 25 days ago
babel-preset-mbp v0.0.26
babel-preset-mbp
babel预设的最佳实践
参考来源
- stage-2/3提案: https://github.com/tc39/proposals
- stage-1提案: https://github.com/tc39/proposals/blob/master/stage-1-proposals.md
- stage-0提案: https://github.com/tc39/proposals/blob/master/stage-0-proposals.md
- 已完成-提案: https://github.com/tc39/proposals/blob/master/finished-proposals.md
- 不维护-提案: https://github.com/tc39/proposals/blob/master/inactive-proposals.md
- stage完整: https://github.com/babel/babel/tree/v7.8.5/packages/babel-preset-stage-0
- stage参考: https://npmjs.com/package/@babel/preset-stage-0
- preset参考: https://babeljs.io/docs/en/babel-preset-env
- transform参考: https://babeljs.io/docs/en/babel-plugin-transform-runtime
- transform-runtime一定配上version参数,减少直接注入代码
- preset-env内corejs参数,结合useBuiltIns来polyfill对象和方法,相当于import"core-js/es/array"
- transform-runtime内corejs参数,转换需要polyfill的对象为局部变量,相当于将Promise替换成
_Promise
使用方法
- .babelrc
{ "presets": [["mbp", { "ts": true }]] }
查看依赖
- 涵盖常用babel依赖,一次引入,随意使用
- https://npmgraph.js.org/?q=babel-preset-mbp
option
interface Option {
ts?: boolean | object; // 是否启用ts预设
vue?: 2 | 3 | { ver: 2 | 3 }; // 是否支持vue版jsx
react?: boolean | object; // 是否启用react预设
run?: boolean | object; // 是否启用transform-runtime
css?: boolean | object; // 是否启用自动识别css_modules
repl?: boolean | object; // 是否启用引入替换
[key: string]: any; // env和vue共用配置项
} // 属性值为对象时表示对应语法预设的配置项
开发
module.exports = function (_api, _option, _cwd) {
return { presets: [ ... ], plugins: [ ... ] };
};
变更
- 新增依赖 babel-plugin-import
- 新增依赖 babel-plugin-module-resolver
- 新增依赖 babel-plugin-transform-inline-environment-variables
- plugins 会运行在 presets 之前
- plugins 从首个顺序执行
- presets 从尾个逆序执行
- 子依赖包内包含的命令不会自动安装,常见使用组合
- @babel/cli + babel-preset-mbp
- babel-loader + babel-preset-mbp
- @rollup/plugin-babel + babel-preset-mbp
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