@babel/plugin-transform-regenerator

NOTE: This plugin is included in @babel/preset-env

Example

In

  1. function* a() {
  2.   yield 1;
  3. }

Out

  1. var _marked = [a].map(regeneratorRuntime.mark);
  3. function a() {
  4.   return regeneratorRuntime.wrap(
  5.     function a$(_context) {
  6.       while (1) {
  7.         switch ((_context.prev = _context.next)) {
  8.           case 0:
  9.             _context.next = 2;
  10.             return 1;
  12.           case 2:
  13.           case "end":
  14.             return _context.stop();
  15.         }
  16.       }
  17.     },
  18.     _marked[0],
  19.     this
  20.   );
  21. }

Installation

  1. npm install --save-dev @babel/plugin-transform-regenerator

Usage

With a configuration file (Recommended)

Without options:

  1. {
  2.   "plugins": ["@babel/plugin-transform-regenerator"]
  3. }

With options:

namedefault value
asyncGeneratorstrue
generatorstrue
asynctrue
  1. {
  2.   "plugins": [
  3.     [
  4.       "@babel/plugin-transform-regenerator",
  5.       {
  6.         "asyncGenerators": false,
  7.         "generators": false,
  8.         "async": false
  9.       }
  10.     ]
  11.   ]
  12. }

Via CLI

  1. babel --plugins @babel/plugin-transform-regenerator script.js

Via Node API

  1. require("@babel/core").transformSync("code", {
  2.   plugins: ["@babel/plugin-transform-regenerator"],
  3. });