使用定时器 functionthrottle(func,wait){lettimeout;returnfunction(){if(!timeout){timeout=setTimeout(()=>{func.apply(this,arguments);timeout=null;},wait);}};}functionhandleScroll(){console.log("滚动事件被触发");}constthrottledHandleScroll=throttle(handleScroll,200);window.addEventListener("scroll...
function throttle(func, delay) { let isRunning; return function(...args) { let context = this; // store the context of the object that owns this function if(!isRunning) { isRunning = true; func.apply(context,args) // execute the function with the context of the object that owns it...
*/constlog =console.log;// 节流: 是指在指定的单位时间内,如果重复触发相同的事件,则忽略后面的事件,直到上一次的事件执行完成,才会重新开始执行下一次的事件!functionthrottle(callback, timer =1000) {letid =null;letflag =true;returnfunction() {if(!id && flag) { id =setTimeout(() =>{callback...
(not not) operator in JavaScript? 3487 What is the difference between call and apply? 3329 Why does my JavaScript code receive a "No 'Access-Control-Allow-Origin' header is present on the requested resource" error, while Postman does not? 731 Combination of async function + await + ...
// 简单的`debounce`函数实现vardebounce =function(func, wait){vartimer// 定时器// 返回包装过的debounce函数returnfunction(...args){// 如果有触发,则取消之前的触发,以当前触发为准,重新计时if(timer){clearTimeout(timer) }// 设置定时器timer =setTimeout(function(){// 定时器的回调函数:清除本次...
function throttle(callback, timer = 1000) { let id = null; let flag = true; return function() { if(!id && flag) { id = setTimeout(() => { callback(); clearTimeout(id); // flag = true; }, timer); } else { log(`等待中,忽略后面事件的执行!`); ...
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。
throttle: Throttle technique don't allow us to execute our function more than once every X milliseconds. 节流: 节流技术是我们不能在X毫秒内触发第二次函数调用。 简单的理解节流就像控制水龙头单位时间内的出水量一样,在一个设定时间段内只能触发一次调用。若在一个时间段内连续触发多次函数真实调用根据设置...
functiondebounce(fn,delay){lettimer=null;returnfunction(){clearTimeout(timer);timer=setTimeout(()=>{fn.apply(this,arguments);},delay);};}// 使用示例constdebouncedFn=debounce(someExpensiveFunction,300);inputElement.addEventListener('input',debouncedFn); ...
代码语言:javascript 复制 /** * @param {Function} fn * @param {Number} delay */functionthrottle(fn,delay=50){letlastTime=0;returnfunction(...args){constnow=Date.now();if(now-lastTime>delay){lastTime=now;fn.apply(this,args);}};}setInterval(throttle(()=>{console.log(1);},500),1...