js的一些

<input type="text" id="couponCount" name="couponCount" maxlength="4" class="form-control" onchange="vaildCount(this);" placeholder="发行数量" nullmsg="发行数量不能为空" onkeyup="this.value=this.value.replace(/\D/g,'')" value="">
onkeyup="this.value=(this.value.match(/\d+(\.\d{0,2})?/)||[''])[0]"




var touritemList = $("#touritem").children("tr");
        var bjItemstr ="";// new Array();
        for (var i=0;i<touritemList.length;i++) { 
        	var valueMap = new Map();
            var itemId = touritemList.eq(i).find("td").eq(0).children().val();
      	    var bjxm = touritemList.eq(i).find("td").eq(1).html();
      	    var jglx = touritemList.eq(i).find("td").eq(2).html();
      	    var xsjg = touritemList.eq(i).find("td").eq(3).html();
      	    var sjsl = touritemList.eq(i).find("td").eq(4).children().val();
      	    
	    	if(i==touritemList.length-1){
	    		bjItemstr=bjItemstr+"{\"itemId\":\""+itemId+"\",\"bjxm\":\""+bjxm+"\",\"jglx\":\""+jglx+"\",\"xsjg\":\""+xsjg+"\",\"sjsl\":\""+sjsl+"\"}";
	    	}else{
	    		bjItemstr=bjItemstr+"{\"itemId\":\""+itemId+"\",\"bjxm\":\""+bjxm+"\",\"jglx\":\""+jglx+"\",\"xsjg\":\""+xsjg+"\",\"sjsl\":\""+sjsl+"\"},";
	    	}
            //var history_income_type =touritemList.eq(i).find("td")  tdArr.eq(0).find("input").val();
          }
        $("#bjItemstr").val("[" + bjItemstr + "]");












var guestItemArray = new Array();
        var guestTrs = $("#guestTable tbody").find("tr");
        for (var i = 0; i < guestTrs.length; i++) {
        	var trCells = guestTrs[i].cells;
        	var obj ={};//新建对象
        	var empty=true;
        	for (var j = 0; j < trCells.length; j++) {
        		var o = trCells[j].firstChild;
        		if( typeof($(o).val())!="undefined"){//!exp &&  && exp!=0 && exp!=''
        			var ov = $(o).val().trim()
        			if( ov!= ''){
        				empty=false;
        			}
        		}
            	obj[$(o).attr('name')] = $(o).val();
			}
        	if(!empty){
        		guestItemArray.push(obj);//将对象放入对象数组
        	}
		}      	
      	$("#guestItemstr").val(JSON.stringify(guestItemArray));







parent.layer.confirm("当前报价已超过您的折扣权限，系统将自动向路经理（OP）提交报价申请", {
                    icon: 3,
                    title: '提示',
                    btn: ['确认', '取消']
                }, function (index) {
                	$.ajax({
                        type: "post",
                        traditional: true,
                        url: $('#form').attr("action"),
                        data: $('#form').serialize(),
                        success: function (data) {
                            if (data.retCode == 0) {
                            	window.history.go(-1);
                            	layer_success(data.retMsg, {icon: 1, time: 2000});
                            } else {
                            	layer_error(data.retMsg, {icon: 2, time: 2000});
                            }
                        }
                    });
                    parent.layer.close(index);
                });

var djje = $("#"+id).parent().prev().html();
        	baseLinePrice = baseLinePrice+amount*djje;
        	if(amount>0){//.style.backgroundColor="green";
        		$("#"+id).parent().parent().css('background-color', 'red');
        	}else{
        		$("#"+id).parent().parent().removeAttr("style");
        	}



1
var date = "123?";
方法:1：
date = date.substring(0, date.lastIndexOf('?'));

方法2：
date = date.substr(0,date.length-1);

方法3：
date = date.substring(0, date.length - 1);

id 转换为字符串 ${item.id?c}