[JavaScript] Throttling and anti-shake

前言

Reference document: https://www.cnblogs.com/momo798/p/9177767.html

代码实现

• Throttling

Just copy this piece of code into the process.
Although this is simple, it seems to be global? Not clear

this.time && clearTimeout(this.time)
this.time = setTimeout(() => {
    
    
   // 业务代码
   this._likeusername(val)
 }, 1200)

• Anti-shake

// 防抖
function debounce(fn, wait) {
    
        
    var timeout = null;    
    return function() {
    
            
        if(timeout !== null)   clearTimeout(timeout);        
        timeout = setTimeout(fn, wait);    
    }
}
// 处理函数
function handle() {
    
        
    console.log(Math.random()); 
}
// 滚动事件
window.addEventListener('scroll', debounce(handle, 1000));