Question

从 Babel v7 开始，所有针对处于标准提案阶段的功能所编写的预设（stage preset）都已被弃用。 请查看 此篇博客文章 了解更多信息。

有关升级说明，请参与 这份 README。

Install

npm install --save-dev @babel/preset-stage-0

Usage

Via .babelrc (Recommended)

.babelrc

{
  "presets": ["@babel/preset-stage-0"]
}

Via CLI

babel script.js --presets @babel/preset-stage-0

Via Node API

require("@babel/core").transform("code", {
  presets: ["@babel/preset-stage-0"]
});

Options

loose

boolean, defaults to false.

Enable "loose" transformations for any plugins in this preset that allow them.

useBuiltIns

boolean, defaults to false.

Will use the native built-in instead of trying to polyfill behavior for any plugins that require one.

decoratorsLegacy

boolean, defaults to false.

Use the legacy (stage 1) decorators syntax and behavior.