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event-target-shim

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event-target-shim

An implementation of WHATWG EventTarget interface.

    6.0.2latest
    GitHub
    npm

Version published
Maintainers
1
Weekly downloads
14,768,951
increased by4.08%

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event-target-shim

npm version Downloads/month Build Status Coverage Status Dependency Status

An implementation of WHATWG EventTarget interface and WHATWG Event interface. This implementation supports constructor, passive, once, and signal.

This implementation is designed ...

  • Working fine on both browsers and Node.js.
  • TypeScript friendly.

💿 Installation

Use npm or a compatible tool.

npm install event-target-shim

📖 Getting started

import { EventTarget, Event } from "event-target-shim";

// constructor (was added to the standard on 8 Jul 2017)
const myNode = new EventTarget();

// passive flag (was added to the standard on 6 Jan 2016)
myNode.addEventListener(
  "hello",
  (e) => {
    e.preventDefault(); // ignored and print warning on console.
  },
  { passive: true }
);

// once flag (was added to the standard on 15 Apr 2016)
myNode.addEventListener("hello", listener, { once: true });
myNode.dispatchEvent(new Event("hello")); // remove the listener after call.

// signal (was added to the standard on 4 Dec 2020)
const ac = new AbortController();
myNode.addEventListener("hello", listener, { signal: ac.signal });
ac.abort(); // remove the listener.
  • For browsers, use a bundler such as Webpack to bundle.
    • If you want to support IE11, use import {} from "event-target-shim/es5" instead. It's a transpiled code by babel. It depends on @baebl/runtime (^7.12.0) package.
  • The AbortController class was added to the standard on 14 Jul 2017. If you want the shim of that, use abort-controller package.

📚 API Reference

See docs/reference.md.

💥 Migrating to v6

See docs/migrating-to-v6.md.

📰 Changelog

See GitHub releases.

🍻 Contributing

Contributing is welcome ❤️

Please use GitHub issues/PRs.

Development tools

  • npm install installs dependencies for development.
  • npm test runs tests and measures code coverage.
  • npm run watch:mocha runs tests on each file change.

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Last updated on 07 Jan 2021

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Socket installs a GitHub app to automatically flag issues on every pull request and report the health of your dependencies. Find out what is inside your node modules and prevent malicious activity before you update the dependencies.

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