SOURCE

var lastTime = new Date().getTime();
var currentTime = new Date().getTime();
var timeOut = 5000; //设置超时时间: 10分
 
window.onload = function () {
  window.document.onmousedown = function () {
    localStorage.setItem("lastTime",new Date().getTime());
  }
};
function checkTimeout() {
  currentTime = new Date().getTime(); //更新当前时间
  lastTime = localStorage.getItem("lastTime");
  // console.log(currentTime - lastTime);
  // console.log(timeOut);
  if (currentTime - lastTime > timeOut) { //判断是否超时
    console.log(123123)
  }
}
 
/* 定时器 间隔30秒检测是否长时间未操作页面 */
window.setInterval(checkTimeout, 1000);


// https://codepen.io/n7best/pen/RMxKQr
console 命令行工具 X clear

                    
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console