JS日期比较的一个小技巧

//时间选择判断
    $("#yjArriveTime").change(function(){
        var chooseDate = $("#yjArriveTime").val();
        var zhDate = $("#zhCargoTime").val();
        chooseDate = chooseDate.replace(/-/g, "/")
        zhDate = zhDate.replace(/-/g, "/")
        var choose = new Date(chooseDate);
        var zh = new Date(zhDate);
        if(Date.parse(choose) - Date.parse(zh)<0){   
            Frm.alert("收货日期必须晚于装货日期")   
        }   
    })