javascript - Babili 缩小但不转译

Question

我被 babili 困住了.

我需要转译，然后缩小用ES6编写的javascript。所以我使用以下方法安装了该软件包:

npm install babili --save-dev

并制作了包含预设的.babelrc文件:

{"presets": ["es2015"]}

现在我尝试了以下命令

./node_modules/.bin/babili public/js/rt.socket.js --out-file public/test.min.js

它确实给出了缩小但不转译。这可能是什么原因？ `

Answer 1

Babili 不使用.babelrc 。根据 README :

Note that, because the babili command uses the default preset with no-babelrc, you cannot set any non-default options in the preset's plugins with this command. To do this, you can use the babel command with the options set in a .babelrc. See the preset docs for more information on how to do this.

解决方案是使用 Babel 和 babel-preset-babili预设，如 Babel preset 中所述自述文件部分(假设您已经安装了 Babel):

Install

npm install babel-preset-babili --save-dev

Usage

You'll most likely want to use it only in the production environment. Check out the env docs for more help.

Options specific to a certain environment are merged into and overwrite non-env specific options.

.babelrc:

{
  "presets": ["es2015"],
  "env": {
    "production": {
      "presets": ["babili"]
    }
  }
}

然后你需要设置环境变量，它可能类似于 BABEL_ENV=production npm run build