babel-plugin-import 按需引入组件

安装依赖

npm i babel-plugin-import -D

babel.config.js配置

module.exports = {
  plugins: [
    ['import', {
      libraryName: 'vant',
      libraryDirectory: 'es',
      style: true
    }, 'vant']
  ]
};

代码中按需引入

import { Button } from 'vant';