webpack+babel使用transform-object-rest-spread插件之后main.js文件体积翻好几倍

Question

因为iviewui中的DatePicker需要用到扩展运算，可是添加transform-object-rest-spread插件之后产生的main.js文件体积翻好几倍
.babelrc如下

{
  "presets": ["env"],
  "plugins": [
    [
      "transform-object-rest-spread", //支持iviewui中的扩展运算符
      "import",
      {
        "libraryName": "iview",
        "libraryDirectory": "src/components"
      }

    ]
  ]
}

warn信息如下

WARNING in entrypoint size limit: The following entrypoint(s) combined asset size exceeds the recommended limit (244 KiB). This can impact web performance.
Entrypoints:
  main (817 KiB)
      main.77c9e24ff58d4333e1a0.js

有没有办法降低文件体积？

Answer 1

我把它弄到480kb了
直接卸载transform-object-rest-spread
安装stage-3：npm install --save-dev babel-preset-stage-3
.babelrc中设置"presets": ["env","stage-3"],
ie10下测试通过