防抖节流

debounce.js

// 防抖
function debounce(fn, time){
  let timer;
  return function(){
    clearTimeout(timer);
    timer = setTimeout(function(){
      fn();
    }, time)
  }
}
function fn(){console.log('fn')}
var nFn = debounce(fn, 1000);

throttle.js

// 节流
function throttle(fn, time){
  let canRun = true;
  return function(){
    if(!canRun) return
    canRun = false;
    setTimeout(function(){
      canRun = true;
      fn();
    }, time)
  }
}

function fn(){console.log('fn')}
var nFn = throttle(fn, 1000);