Justin Ridgewell 23f98a753a Add throw expressions (#6325 )

* Add throw expressions

Stage 2 proposal: https://github.com/tc39/proposal-throw-expressions

* Update babylon

* Add to stage 2

2017-09-27 16:15:44 -04:00

babel-plugin-syntax-throw-expressions

Allow parsing of Throw Expressions:

function test(param = throw new Error('required!')) {
  const test = param === true || throw new Error('Falsey!');
}

Installation

npm install --save-dev babel-plugin-syntax-throw-expressions

.babelrc

{
  "plugins": ["syntax-throw-expressions"]
}

babel --plugins syntax-throw-expressions script.js

require("babel-core").transform("code", {
  plugins: ["syntax-throw-expressions"]
});