js判断页面是否长时间未操作

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const waitOperate = (callback, second) => {   let count = 0;   let x;   let y;   let timer;   //监听鼠标   document.onmousemove = function (event) {     const x1 = event.clientX;     const y1 = event.clientY;     if (x != x1 || y != y1) {       count = 0;     }     x = x1;     y = y1;   };   //监听键盘   document.onkeydown = function () {     count = 0;   };   function countTime() {     count++;     if(count >=  second){       callback();       count = 0;       // clearInterval(timer);     }   }   timer = setInterval(countTime, 1000)   ; }