//是否为数组判定
 if(Object.prototype.toString.call(value) == '[object Array]') {
      //是
  }
 //是否为对象判定
 if(Object.prototype.toString.call(value) == '[object Object]') {
      //是
  }

//是否为数字判定
if(!isNaN(parseFloat(value)) && isFinite(value)){
    //是 
}


// 添加或删除数组中的元素 ，会改变原数组
Array.splice(1,2,3) 
//1 必需。数组元素的下标,规定从何处添加/删除元素
//2 可选。删除数量
//3 可选。要添加到数组的新元素
//  返回被删除的数组  

//数组（字符串）中返回选定的元素 ，不会改变原始数组(字符串)
Array.slice(1，2) //返回选定的元素。
//1 可选。开始截取的下标,负数表示倒数第几个元素
//2 可选。结束截取的下标，

e.preventDefault();//阻止默认行为
e.stopPropagation();//阻止冒泡

//获取随机字符串
 function randomString(length) {
        let chars = 'abcdefghijklmnopqrstuvwxyz';
        let result = '';
        for (let i = length; i > 0; --i) result += chars[Math.floor(Math.random() * chars.length)];
        return result;
}
    
 //信息存储
 function saveValue(key,value) {
        value = JSON.stringify(clone(value))
        localStorage.setItem(key, value);
}
 function getValue(key) {
        value =  localStorage.getItem(key);
        return JSON.parse(value)
 }
    
    //清除form表单内容
 function clearinput(id) {
        $(":input",id)
            .not(":button",":reset","hidden","submit")
            .val("")
            .removeAttr("checked")
            .removeAttr("selected");
 } 
 //监听横竖屏切换
window.addEventListener('orientationchange',function () {
    window.orientation // 0 横屏 90 竖屏
    //xxxxxxxxxx
}, true);




//协议 
 window.location.protocol
//域名
 window.location.host
//路径
window.location.pathname;
//完整地址
window.location.href

 //获取单个url参数
  function getQueryVariable(variable) {
       var query = window.location.search.substring(1);
       var vars = query.split("&");
       for (var i=0;i<vars.length;i++) {
               var pair = vars[i].split("=");
               if(pair[0] == variable){return pair[1];}
       }
       return(false);
  }
   
 // 获取时间
      function   formatCurrentDate() {
            let now:any = new Date();
            let year :any= now.getFullYear(); //得到年份
            let month :any= now.getMonth();//得到月份
            let date:any = now.getDate();//得到日期
            let day :any= now.getDay();//得到周几
            let hour :any= now.getHours();//得到小时
            let minu :any= now.getMinutes();//得到分钟
            let sec :any= now.getSeconds();//得到秒
            let MS :any= now.getMilliseconds();//获取毫秒
            let week:any;
            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;
            if (MS < 100 )MS = "0" + MS;
            let arr_week:any = new Array("星期日", "星期一", "星期二", "星期三", "星期四", "星期五", "星期六");
            week = arr_week[day];
            let time:any = "";
//            time = year + "年" + month + "月" + date + "日" + " " + hour + ":" + minu + ":" + sec + " " + week;
            return  year + "-" + month + "-" + date  ;
        }


//监听页面获取焦点，可用作页面返回验证
    next_page = true
    window.addEventListener('focus', function() {
           if(next_page){
               page = 0
               loadmore()
           }
           next_page = false
       });