vue js常用工具方法汇总

梦里梦外; 2022-12-25 10:54 158阅读 0赞

//时间格式化 参数2020-10-20
    const shijiantime=(times)=>{ 
    	var timearr = times.replace(" ", ":").replace(/\:/g, "-").split("-");
    	var timestr = timearr[1] + "月" + timearr[2]
    	return timestr
    }
    //字符串 
    shijiantime('2020-10-20') 结果10月20
    //时间格式化 参数2020-10-20
    Format(times){
        var timearr = times.replace(" ", ":").replace(/\:/g, "-").split("-");  
        var timestr = timearr[1] + "月" + timearr[2] + " "+ timearr[3] +":"+timearr[1]
        return timestr
    },
    Format('2020-10-20 13:20:30') 结果10月20 13:30
    
    //JS获取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);
    }
    //http://www.runoob.com/index.php?id=1&image=awesome.jpg
    //调用 getQueryVariable("id") 返回 1
    //调用 getQueryVariable("image") 返回 awesome.jpg
    
    /**
     * Description:[输出指定n位数的随机数的随机整数]
     *
     * @param n  指定n位数
     *
     */
    const RndNum=(n)=>{
        var rnd = "";
        for (var i = 0; i < n; i++) {
            rnd += Math.floor(Math.random() * 10);
        }
        return rnd;
    }
    //数组
    var timeArr=[];
    for(var j = 0; j<res.other.alarmTime.length; j++) {
    	timeArr.push(shijiantime(res.other.alarmTime[j]))                      
    }
    
    //获取今天/昨天/明天 前N天数据存入数组 用于统计图
    const getDateStr=(AddDayCount)=>{ 
        var dd = new Date();
        dd.setDate(dd.getDate() + AddDayCount);   //获取AddDayCount天后的日期
        var year = dd.getFullYear();
        var mon = dd.getMonth()+1;                //获取当前月份的日期
        var day = dd.getDate();
        return year + '-' + ( mon < 10 ? ( '0' + mon ) : mon ) + '-' + ( day < 10 ? ( '0' + day ) : day) ;
    }
    /*
    今天：getDateStr(0)
    昨天：getDateStr(-1)
    明天：getDateStr(1)
    */
    
    
    //d->今日格式化日期  
    //n->后多少天
    const getBeforetime=(d,n)=>{ 
        d = d.replace(/-/g,'/')
        d = new Date(d);
        var timearray=[]
        for (var i=0;i<n ;i++ ){   
                var dd=d
                dd = +dd - 1000*60*60*24*i;
                dd = new Date(dd);
                var year = dd.getFullYear();
                var mon = dd.getMonth()+1;
                var day = dd.getDate();
                var s = mon+"月"+day;
                // var s = year+"-"+(mon<10?('0'+mon):mon)+"-"+(day<10?('0'+day):day);
                timearray.push(s)
        }
        return timearray.reverse();
    }
    
    //判断pc与手机
    const _isMobile=()=>{
        let flag = navigator.userAgent.match(/(phone|pad|pod|iPhone|iPod|ios|iPad|Android|Mobile|BlackBerry|IEMobile|MQQBrowser|JUC|Fennec|wOSBrowser|BrowserNG|WebOS|Symbian|Windows Phone)/i)
        return flag;
    }
    if (_isMobile()) {
    	alert('手机')
    	} else {
    	alert('pc')
    }
    
    function IsPC() {
        var userAgentlnfo = navigator.userAgent;
        var Agents = [ "Android", "iPhone", "SymbianOS", "Windows Phone", "iPad", "iPod"];
        var flag = true;
        for(var v = 0; v < Agents.length; v++) {
            if (userAgentlnfo.indexOf(Agents[v]) > 0) {
                 flag = false;
                 break;
            }
        }
        return flag;
    }
    
    //移动端input position: fixed 处理方法
    var windheight = $(window).height();  /*未唤起键盘时当前窗口高度*/        
    $(window).resize(function(){
       var docheight = $(window).height();  /*唤起键盘时当前窗口高度*/        
       if(docheight < windheight){            /*当唤起键盘高度小于未唤起键盘高度时执行*/
          $(".cardfoot").css("position","static");
       }else{
          $(".cardfoot").css("position","fixed");
       }           
    });