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simple-dom-listener

v0.0.5

Published

Simple dom listener helpers to add remove events without having to keep a reference to the listener itself

Downloads

86

Readme

simple-dom-listener

Simplified helpers to add/remove dom listeners without having to keep a reference to the listener itself to remove it

Features

  • Very simple api, on, off methods to add and remove dom listeners
  • The on method returns a function that you can use to remove the listener without having to pass the event name and the listener function

Installation

npm install simple-dom-listener

Usage

import { on } from 'simple-dom-listener';

// add a listener to the document element
const removeListener = on(document, 'click', (event) => {
  console.log(event);
});

// later the returned function can be used
// to remove the event listener, without having to keep a reference to the listener
removeListener();

// a single listener for multiple events can be added
const off = on(document, ['click', 'keyup'], (event) => {
  console.log(event);
});

// later calling the returned off function listeners can be removed without having to keep a reference to the listener itself

The returned function to remove the listener is very useful in React for example, as it can be used in the useEffect cleanup function

useEffect(() => {
  const off = on(document, 'click', (event) => {
    console.log(event);
  });
  return off;
}, []);

// or more simplified as
useEffect(() => {
  return on(document, 'click', (event) => {
    console.log(event);
  });
}, []);

License

MIT