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@babel/plugin-transform-regenerator

info

This plugin is included in @babel/preset-env

Example

In

JavaScript
function* a() {
yield 1;
}

Out

JavaScript
var _marked = [a].map(regeneratorRuntime.mark);

function a() {
return regeneratorRuntime.wrap(
function a$(_context) {
while (1) {
switch ((_context.prev = _context.next)) {
case 0:
_context.next = 2;
return 1;

case 2:
case "end":
return _context.stop();
}
}
},
_marked[0],
this
);
}

Installation

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

Usage

Without options:

babel.config.json
{
"plugins": ["@babel/plugin-transform-regenerator"]
}

With options:

namedefault value
asyncGeneratorstrue
generatorstrue
asynctrue
babel.config.json
{
"plugins": [
[
"@babel/plugin-transform-regenerator",
{
"asyncGenerators": false,
"generators": false,
"async": false
}
]
]
}

Via CLI

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

Via Node API

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