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regenerator-runtime
Advanced tools
Runtime for Regenerator-compiled generator and async functions.
Weekly downloads
Package description
The regenerator-runtime package is a runtime module for Regenerator-compiled generator and async functions. It provides a polyfill for environments that do not natively support these features, allowing developers to use generators and async/await syntax in their JavaScript code.
Generator Function Support
Enables the use of generator functions, which can yield multiple values over time, allowing for more control over asynchronous operations.
function* gen() {
yield 1;
yield 2;
yield 3;
}
const g = gen();
console.log(g.next().value); // 1
console.log(g.next().value); // 2
console.log(g.next().value); // 3
Async/Await Support
Allows the use of async/await syntax for writing asynchronous code in a more synchronous fashion, improving readability and maintainability.
async function fetchData() {
const data = await fetch('https://api.example.com/data');
return data.json();
}
fetchData().then(data => console.log(data));
Babel-polyfill includes regenerator-runtime along with a full ES2015+ environment polyfill. It is more comprehensive but also larger in size compared to regenerator-runtime, which focuses only on generator and async function support.
Core-js is a modular standard library for JavaScript, which includes polyfills for ECMAScript features. It provides similar functionality to regenerator-runtime but also includes polyfills for other features such as Promises, Symbols, Collections, Iterators, and more.
While not providing generator or async function support, es6-promise is a lightweight library that offers a polyfill for Promises, which are often used in conjunction with async/await syntax. It is more focused compared to regenerator-runtime, which provides broader support for ES2015+ features.
Readme
Standalone runtime for
Regenerator-compiled generator
and async
functions.
To import the runtime as a module (recommended), either of the following import styles will work:
// CommonJS
const regeneratorRuntime = require("regenerator-runtime");
// ECMAScript 2015
import regeneratorRuntime from "regenerator-runtime";
To ensure that regeneratorRuntime
is defined globally, either of the
following styles will work:
// CommonJS
require("regenerator-runtime/runtime");
// ECMAScript 2015
import "regenerator-runtime/runtime.js";
To get the absolute file system path of runtime.js
, evaluate the
following expression:
require("regenerator-runtime/path").path
FAQs
Runtime for Regenerator-compiled generator and async functions.
The npm package regenerator-runtime receives a total of 44,929,665 weekly downloads. As such, regenerator-runtime popularity was classified as popular.
We found that regenerator-runtime demonstrated a healthy version release cadence and project activity because the last version was released less than a year ago. It has 1 open source maintainer collaborating on the project.
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