debounce 代码语言:javascript 代码运行次数:0 运行 AI代码解释 varisObject=require('./isObject'),now=require('./now'),toNumber=require('./toNumber');/** Error message constants. */varFUNC_ERROR_TEXT='Expected a function';/* Built-in method references for those with the same name as other...
I was asked recently how debouncing works in JavaScript. I knew why I should use it, what it did and that the ES6 helper function I’d been using was short and easy to read through. However I didn’t grasp how it works. Let’s start by taking a look at a commonly used debounce ...
4 * @param delay {Number} 延迟时间,也就是阈值,单位是毫秒 5 * @return {function} 返回一个“去弹跳”了的函数 6 */ 7 debounce(fn,delay) 2. 简单实现 1 /** 2 * 3 * @param fn {Function} 实际要执行的函数 4 * @param delay {Number} 延迟时间,也就是阈值,单位是毫秒(ms) 5 * 6 *...
function debounce(fn, delay){ var timer; return function(){ if(timer) clearTimeout(timer) timer = setTimeout(()=>{ timer = undefined fn.apply(this, arguments); }, delay||0) } } 小结 throttle函数与debounce函数的区别就是throttle函数在触发后会马上执行,而debounce函数会在一定延迟后才执行。
functiondebounce_leading(func, timeout =300){lettimer;return(...args) =>{if(!timer) { func.apply(this, args); }clearTimeout(timer); timer =setTimeout(() =>{ timer =undefined; }, timeout); }; } https://www.freecodecamp.org/news/javascript-debounce-example/ ...
We do this with setTimeout and clearTimeout in the JavaScript above.If you noticed the debounce function taking a function and returning a another function, that is an example of a closure in JavaScript. When we debounce a function, we pass our original function in, and wrap it in ...
function onScroll_1() { console.log('执行滚动处理函数啦'); } window.addEventListener('scroll', my_debounce(onScroll_1, 1000)); 打开页面,不断滚动可以在控制台看到如下图的console. 从图中可以看出,我触发了90次滚动响应,但实际上 滚动处理函数执行了一次。
"Hello, JavaScript!" "Message logged" Explanation: createDebouncedFunction(func, delay):Takes a function (func) and a delay in milliseconds as arguments. timeout:Used to store the current setTimeout instance, ensuring only the latest call is executed. ...
function debounce(callback, timer = 1000) { let id = null; return function() { clearTimeout(id); id = setTimeout(() => { callback(); }, timer); } } const cb = () => log(`callback function!`) const test = debounce(cb, 3000); ...
javascript const debounceFunction = _.debounce(() => { // 执行需要防抖的代码 }, 1000);4.将...