1、格式化日期时间

function getCurrentDate(format = 2) {
      var now = new Date();
      var year = now.getFullYear(); //得到年份
      var month = now.getMonth();//得到月份
      var date = now.getDate();//得到日期
      var day = now.getDay();//得到周几
      var hour = now.getHours();//得到小时
      var minu = now.getMinutes();//得到分钟
      var sec = now.getSeconds();//得到秒
      month = month + 1;
      if (month < 10) month = "0" + month;
      if (date < 10) date = "0" + date;
      if (hour < 10) hour = "0" + hour;
      if (minu < 10) minu = "0" + minu;
      if (sec < 10) sec = "0" + sec;
      var time = "";
      //精确到天
      if(format==1){
        time = year + "-" + month + "-" + date;
      }
      //精确到分
      else if(format==2){
        time = year + "-" + month + "-" + date+ " " + hour + ":" + minu + ":" + sec;
      }
      return time;
}

2、获取URL中get请求参数

        * [获取URL中的参数名及参数值的集合]
             * 示例URL:http://htmlJsTest/getrequest.html?uid=admin&rid=1&fid=2&name=小明
             * @param {[string]} urlStr [当该参数不为空的时候，则解析该url中的参数集合]
             * @return {[string]}       [参数集合]
             */
            getRequestParam(){
                var urlStr = window.location.href
                if (typeof urlStr == "undefined") {
                    var url = decodeURI(location.search); //获取url中"?"符后的字符串
                } else {
                    var url = "?" + urlStr.split("?")[1];
                }
                var theRequest = new Object();
                if (url.indexOf("?") != -1) {
                    var str = url.substr(1);
                    strs = str.split("&");
                    for (var i = 0; i < strs.length; i++) {
                        theRequest[strs[i].split("=")[0]] = decodeURI(strs[i].split("=")[1]);
                    }
                }
                return theRequest;
            }

3、JS监听键盘按下事件(Enter回车键)

document.onkeydown = function(e){
    var ev = document.all ? window.event : e;
    if(ev.keyCode==13) {
        //serach()
        document.getElementById('searchBtn').click();
    }
}