useListener

attach native event without and don't care about bind / unbind

Demo CodeSandbox

Usage

1. bind resize event

import {useState} from "react";
function App() {
    const [width, setWidth] = useState(0)
    useListener(window, "resize", () => {
        setWidth(window.innerWidth);
    });
    return (
        <div>Width: {width}</div>
    )
}

2. cancel binding

import {useState} from "react";
function App() {
    const [width, setWidth] = useState(0)
    const listener = useListener(window, "resize", () => {
        setWidth(window.innerWidth);
        if (window.innerWidth < 1000) {
            listener();
        }
    });
    return (
        <div>Width: {width}</div>
    )
}

3. conditionally bind event

import {useState} from "react";
function App() {
    const [enabled, setEnabled] = useState(false);
    const [width, setWidth] = useState(0)
    useListener(window, "resize", () => {
        setWidth(window.innerWidth);
    }, {
        enabled
    });
    return (
        <div>
            <div>Width: {width}</div>
            <button onClick={() => setEnabled(!enabled)}>Bind resize</button>
        </div>
    )
}

4. debounce

import {useState, useRef} from "react";
function App() {
    const ref = useRef();
    useListener(ref, "keyup", (e) => {
        // set width after 300 milliseconds when stopped resizing
        console.log(e.target.value);
    }, {
        debounce: 300
    });
    return (
        <div>
            <input ref={ref} />
        </div>
    )
}

5. throttle

import {useState} from "react";
function App() {
    const [width, setWidth] = useState(0)
    useListener(window, "resize", () => {
        // trigger after 300 milliseconds
        setWidth(window.innerWidth);
    }, {
        throttle: 300
    });
    return (
        <div>
            <div>Width: {width}</div>
        </div>
    )
}

Reference

   const listener = useListener(element, event, callback, option);

• element : Element | Document | Window | ref element to attache event

• event : string event name to bind

• callback : (e) => void callback

• option:

  • enabled : boolean weather to listen or not, default true
  • throttle : number to throttle event, default undefined
  • debounce : number debounce event, default undefined
  • capture : boolean native flag
  • passive : boolean native flag
  • once : boolean native flag