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babel-plugin-transform-async-generator-functions
Advanced tools
Turn async generator functions into ES2015 generators
Turn async generator functions and for-await statements to ES2015 generators
In
async function* agf() {
await 1;
yield 2;
}
Out
var _asyncGenerator = ...
let agf = (() => {
var _ref = _asyncGenerator.wrap(function* () {
yield _asyncGenerator.await(1);
yield 2;
});
return function agf() {
return _ref.apply(this, arguments);
};
})();
For await example
async function f() {
for await (let x of y) {
g(x);
}
}
Example Usage
async function* genAnswers() {
var stream = [ Promise.resolve(4), Promise.resolve(9), Promise.resolve(12) ];
var total = 0;
for await (let val of stream) {
total += await val;
yield total;
}
}
function forEach(ai, fn) {
return ai.next().then(function (r) {
if (!r.done) {
fn(r);
return forEach(ai, fn);
}
});
}
var output = 0;
forEach(genAnswers(), function(val) { output += val.value })
.then(function () {
console.log(output); // 42
});
npm install --save-dev babel-plugin-transform-async-generator-functions
.babelrc
(Recommended).babelrc
{
"plugins": ["transform-async-generator-functions"]
}
babel --plugins transform-async-generator-functions script.js
require("babel-core").transform("code", {
plugins: ["transform-async-generator-functions"]
});
This package transforms async functions to generator functions. While it does not handle async generator functions specifically, it is useful for transforming async functions to a format that is compatible with older JavaScript environments.
Regenerator is a tool to transform async functions and generators to ES5. It provides broader support for both async functions and generator functions, making it a more comprehensive solution compared to babel-plugin-transform-async-generator-functions.
FAQs
Turn async generator functions into ES2015 generators
The npm package babel-plugin-transform-async-generator-functions receives a total of 502,947 weekly downloads. As such, babel-plugin-transform-async-generator-functions popularity was classified as popular.
We found that babel-plugin-transform-async-generator-functions demonstrated a not healthy version release cadence and project activity because the last version was released a year ago. It has 1 open source maintainer collaborating on the project.
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