js 日期比较
参考一：
function checkDate(){
var startTime=document.getElementById("startTime").value; //获得系统日期的文本值
var endTime=document.getElementById("endTime").value; //获得用户选择的日期文本值
var aStart=startTime.split('-'); //转成成数组，分别为年，月，日，下同
var aEnd=endTime.split('-');
var startDate = aStart[0]+"/" + aStart[1]+ "/" + aStart[2];
var endDate = aEnd[0] + "/" + aEnd[1] + "/" + aEnd[2];
if (startDate > endDate) {
$("#moneyMessage").html("<font color=red>开始日期必须小于结束日期</font>");
return false;
}
return true;
}
参考二：
<SCRIPT LANGUAGE="JavaScript">
<!--
function deal(){
//var Y = 6;
//var R ="2009-11-01";
var R = document.getElementById('date').value +'';
var Y = document.getElementById('month').value;
alert(R);
var year=R.substr(0,4);
var month=R.substr(5,2);
var day=R.substr(8,2);
if((parseInt(month)+parseInt(Y)) > 12){
year++;
month = parseInt(month) + parseInt(Y) - 12;
}else{
month = parseInt(month) + parseInt(Y);
}
alert(year+"-"+month+"-"+day);
R = new Date(year,month,day,00,00,00);
dateNow = new Date();
var diff = R.getTime() - dateNow.getTime()
var days = Math.floor(diff/(1000*60*60*24));
var str = "与今天相差" + days + "天"
if(R > dateNow){
alert("大于今天!"+"\n"+str);
}else{
alert("小于今天!"+"\n"+str);
}
}
//-->
</SCRIPT>
月<input type="text" id="month" value="6">
日期 <input type="text" id="date" value="2009-11-01">
<input type="button" value="submit" onClick="deal()">
参考三：
JS 日期比较默认分类 2009-09-21 15:00:12 阅读135 评论0 字号：大中小 订阅 .
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"
"http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312">
<title>无标题文档</title>
</head>
<script language="javascript">
function dateDifferent()
{
var time1 = document.form1.time1.value;
var time2 = document.form1.time2.value;
var date1 = new Date(time1);
var date2 = new Date(time2);
//var DiffDate = DateDiff("d",time1,time2);
//long begintime = begindate.gettime();
//long endtime2 = enddate.gettime();
//long betweendays = (long)((endtime - begintime) / (1000 * 60 * 60 *24) + 0.5);
//var begintime1 = time1.gettime();
//var endtime2 = time2.gettime();
//var betweendays = ((endtime2-begintime1)/(1000*60*60*24)+0.5);
//alert(betweendays);
var resultDate = DateDiff(time1,time2);
alert(DateDiff(time2,time1));
if(resultDate>0){
alert("开始日期大于结束日期！");
}else{
alert("开始日期小于结束日期！");
}
}
//比较两个日期相差的天数的函数
function DateDiff(s1, s2){
//s1和s2都是2007-8-10格式
s1 = s1.replace(/-/g, "/");
s2 = s2.replace(/-/g, "/");
s1 = new Date(s1);
s2 = new Date(s2);
iDays = parseInt((s1- s2) / (1000 * 60 * 60 * 24));
return iDays;
}
/*var days= s1.getTime() - s2.getTime();
var time = parseInt(days / (1000 * 60 * 60 * 24));
alert("相差天数: " + days);*/
//将日期增加10天的函数
function cc()
{
//可以加上错误处理
alert("2003-08-02".replace(/-/g, "/"));
var s = "2003-08-02".replace(/-/g, "/");
var d = new Date(s);
//在js中将时间加10天
d.setTime(d.getTime() + 10*24*60*60*1000); //单位是毫秒
alert(d)
//转换为2003-08-02格式
var descDate = d.getFullYear()+"-"+ ((d.getMonth()+1)>10?(d.getMonth()+1):("0"+(d.getMonth()+1)))
+"-"+(d.getDate()>10?d.getDate():("0"+d.getDate()));
alert(descDate);
}
//将当前日期转换成2003-08-02格式
function checkDate (){
var date = new Date();
var nowDate = date.getFullYear()+"-"+ ((date.getMonth()+1)>10?(date.getMonth()+1):("0"+(date.getMonth()+1)))
+"-"+(date.getDate()>10?date.getDate():("0"+date.getDate()));
alert(nowDate);
}
</script>
<body>
<form name="form1" method="post" action="">
<p>开始日期 :
<input type="text" name="time1">
<input type="button" name="Submit2" value="增加10天" onClick="cc();">
</p>
<p>结束日期：
<input type="text" name="time2">
</p>
<p><input type="button" name="Submit" value="比较" onClick="return dateDifferent()">
</p>
</form>
</body>
</html>
参考四：
function CompareDate(inputDate){
var currentDate = new Date();
if(currentDate.getYear() > inputDate.getYear())
return -1;
else if(currentDate.getYear() < inputDate.getYear())
return 1;
if(currentDate.getMonth() > inputDate.getMonth())
return -1;
else if(currentDate.getMonth() < inputDate.getMonth())
return 1;
if(currentDate.getDate() > inputDate.getDate())
return -1;
else if(currentDate.getDate() < inputDate.getDate())
return 1;
return 0;
}
function Compare() {
var sday = document.getElementById("day").value.split('-');
var inputDate = new Date(sday[0],sday[1]-1,sday[2]);
if(isNaN(inputDate)){
alert("不是日期");
return;
}
var result = CompareDate(inputDate);
if(result < 0)
alert(inputDate.toLocaleString() + "小于当前日期");
else if(result > 0)
alert(inputDate.toLocaleString() + "大于当前日期");
else
alert(inputDate.toLocaleString() + "等于当前日期");
}
参考五：
JavaScript代码
function dateCompare(startdate,enddate)
{
var arr=startdate.split("-");
var starttime=new Date(arr[0],arr[1],arr[2]);
var starttimes=starttime.getTime();
var arrs=enddate.split("-");
var lktime=new Date(arrs[0],arrs[1],arrs[2]);
var lktimes=lktime.getTime();
if(starttimes>=lktimes)
{
return false;
}
else
return true;
}
第二种：
JavaScript代码
//验证是否合法日期
function CheckDate(strDate){
if(strDate.length>0){
var reg= /^(\d )-(\d{1,2})-(\d{1,2}) (\d{1,2}):(\d{1,2}):(\d{1,2})$/;
if(!reg.test(strDate)){
return false;
}
}
return true;
}
function isStartEndDate(startDate,endDate){
//alert(startDate "===" endDate);
if(startDate.length>0&&endDate.length>0){
var startDateTemp = startDate.split(" ");
var endDateTemp = endDate.split(" ");
var arrStartDate = startDateTemp[0].split("-");
var arrEndDate = endDateTemp[0].split("-");
var arrStartTime = startDateTemp[1].split(":");
var arrEndTime = endDateTemp[1].split(":");
var allStartDate = new Date(arrStartDate[0],arrStartDate[1],arrStartDate[2],arrStartTime[0],arrStartTime[1],arrStartTime[2]);
var allEndDate = new Date(arrEndDate[0],arrEndDate[1],arrEndDate[2],arrEndTime[0],arrEndTime[1],arrEndTime[2]);
if(allStartDate.getTime()>allEndDate.getTime()){
return false;
}
}
return true;
}
function checkAskDate(StartDate,EndDate){
if(!CheckDate(StartDate.value)){
alert("开始日期格式不正确!\n正确格式为:2004-01-01 00:00");
StartDate.focus();
return false;
}
if(!CheckDate(EndDate.value)){
alert("结束日期格式不正确!\n正确格式为:2004-01-01 00:00");
EndDate.focus();
return false;
}
if(!isStartEndDate(StartDate.value,EndDate.value)){
alert("开始日期不能大于结束日期");
return false;
}
return true;
}
============================================================================
日期格式:XXXX年-XX月-XX日
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<HTML>
<HEAD>
<TITLE> New document．</TITLE>
<SCRIPT LANGUAGE="javascript">
function judgeDate()
{
var date1 = document．getElementById("dt1").value.replace(/-/g, "/");
var date2 = document．getElementById("dt2").value.replace(/-/g, "/");
var d1 = new Date(date1);
var d2 = new Date(date2);
if(Date.parse(d1) - Date.parse(d2)==0)
{
alert(date1 "等于" date2)
}
if(Date.parse(d1) - Date.parse(d2)<0)
{
alert(date1 "晚于" date2)
}
if(Date.parse(d1) - Date.parse(d2)>0)
{
alert(date1 "早于" date2)
}
}
</SCRIPT>
</HEAD>
<BODY>
<input id="dt1" value="2007-09-09" />
<input id="dt2" value="2007-10-10"/>
<input type="button" value="提交" onclick="judgeDate()"/>
</BODY>
</HTML>
=============================================================
<script language="javascript">
function test(str1,str2)
{
var d1 = new Date(str1);
var d2 = new Date(str2);
if(Date.parse(d1) - Date.parse(d2)==0)
{
alert(str1 "等于" str2)
}
if(Date.parse(d1) - Date.parse(d2)<0)
{
alert(str1 "早于" str2)
}
if(Date.parse(d1) - Date.parse(d2)>0)
{
alert(str1 "晚于" str2)
}
}
</script>
<input type="button" value="确定" onclick="test('2005/4/12','2006/4/12')">
function checkDate(){
var startTime=document.getElementById("startTime").value; //获得系统日期的文本值
var endTime=document.getElementById("endTime").value; //获得用户选择的日期文本值
var aStart=startTime.split('-'); //转成成数组，分别为年，月，日，下同
var aEnd=endTime.split('-');
var startDate = aStart[0]+"/" + aStart[1]+ "/" + aStart[2];
var endDate = aEnd[0] + "/" + aEnd[1] + "/" + aEnd[2];
if (startDate > endDate) {
$("#moneyMessage").html("<font color=red>开始日期必须小于结束日期</font>");
return false;
}
return true;
}
参考二：
<SCRIPT LANGUAGE="JavaScript">
<!--
function deal(){
//var Y = 6;
//var R ="2009-11-01";
var R = document.getElementById('date').value +'';
var Y = document.getElementById('month').value;
alert(R);
var year=R.substr(0,4);
var month=R.substr(5,2);
var day=R.substr(8,2);
if((parseInt(month)+parseInt(Y)) > 12){
year++;
month = parseInt(month) + parseInt(Y) - 12;
}else{
month = parseInt(month) + parseInt(Y);
}
alert(year+"-"+month+"-"+day);
R = new Date(year,month,day,00,00,00);
dateNow = new Date();
var diff = R.getTime() - dateNow.getTime()
var days = Math.floor(diff/(1000*60*60*24));
var str = "与今天相差" + days + "天"
if(R > dateNow){
alert("大于今天!"+"\n"+str);
}else{
alert("小于今天!"+"\n"+str);
}
}
//-->
</SCRIPT>
月<input type="text" id="month" value="6">
日期 <input type="text" id="date" value="2009-11-01">
<input type="button" value="submit" onClick="deal()">
参考三：
JS 日期比较默认分类 2009-09-21 15:00:12 阅读135 评论0 字号：大中小 订阅 .
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"
"http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312">
<title>无标题文档</title>
</head>
<script language="javascript">
function dateDifferent()
{
var time1 = document.form1.time1.value;
var time2 = document.form1.time2.value;
var date1 = new Date(time1);
var date2 = new Date(time2);
//var DiffDate = DateDiff("d",time1,time2);
//long begintime = begindate.gettime();
//long endtime2 = enddate.gettime();
//long betweendays = (long)((endtime - begintime) / (1000 * 60 * 60 *24) + 0.5);
//var begintime1 = time1.gettime();
//var endtime2 = time2.gettime();
//var betweendays = ((endtime2-begintime1)/(1000*60*60*24)+0.5);
//alert(betweendays);
var resultDate = DateDiff(time1,time2);
alert(DateDiff(time2,time1));
if(resultDate>0){
alert("开始日期大于结束日期！");
}else{
alert("开始日期小于结束日期！");
}
}
//比较两个日期相差的天数的函数
function DateDiff(s1, s2){
//s1和s2都是2007-8-10格式
s1 = s1.replace(/-/g, "/");
s2 = s2.replace(/-/g, "/");
s1 = new Date(s1);
s2 = new Date(s2);
iDays = parseInt((s1- s2) / (1000 * 60 * 60 * 24));
return iDays;
}
/*var days= s1.getTime() - s2.getTime();
var time = parseInt(days / (1000 * 60 * 60 * 24));
alert("相差天数: " + days);*/
//将日期增加10天的函数
function cc()
{
//可以加上错误处理
alert("2003-08-02".replace(/-/g, "/"));
var s = "2003-08-02".replace(/-/g, "/");
var d = new Date(s);
//在js中将时间加10天
d.setTime(d.getTime() + 10*24*60*60*1000); //单位是毫秒
alert(d)
//转换为2003-08-02格式
var descDate = d.getFullYear()+"-"+ ((d.getMonth()+1)>10?(d.getMonth()+1):("0"+(d.getMonth()+1)))
+"-"+(d.getDate()>10?d.getDate():("0"+d.getDate()));
alert(descDate);
}
//将当前日期转换成2003-08-02格式
function checkDate (){
var date = new Date();
var nowDate = date.getFullYear()+"-"+ ((date.getMonth()+1)>10?(date.getMonth()+1):("0"+(date.getMonth()+1)))
+"-"+(date.getDate()>10?date.getDate():("0"+date.getDate()));
alert(nowDate);
}
</script>
<body>
<form name="form1" method="post" action="">
<p>开始日期 :
<input type="text" name="time1">
<input type="button" name="Submit2" value="增加10天" onClick="cc();">
</p>
<p>结束日期：
<input type="text" name="time2">
</p>
<p><input type="button" name="Submit" value="比较" onClick="return dateDifferent()">
</p>
</form>
</body>
</html>
参考四：
function CompareDate(inputDate){
var currentDate = new Date();
if(currentDate.getYear() > inputDate.getYear())
return -1;
else if(currentDate.getYear() < inputDate.getYear())
return 1;
if(currentDate.getMonth() > inputDate.getMonth())
return -1;
else if(currentDate.getMonth() < inputDate.getMonth())
return 1;
if(currentDate.getDate() > inputDate.getDate())
return -1;
else if(currentDate.getDate() < inputDate.getDate())
return 1;
return 0;
}
function Compare() {
var sday = document.getElementById("day").value.split('-');
var inputDate = new Date(sday[0],sday[1]-1,sday[2]);
if(isNaN(inputDate)){
alert("不是日期");
return;
}
var result = CompareDate(inputDate);
if(result < 0)
alert(inputDate.toLocaleString() + "小于当前日期");
else if(result > 0)
alert(inputDate.toLocaleString() + "大于当前日期");
else
alert(inputDate.toLocaleString() + "等于当前日期");
}
参考五：
JavaScript代码
function dateCompare(startdate,enddate)
{
var arr=startdate.split("-");
var starttime=new Date(arr[0],arr[1],arr[2]);
var starttimes=starttime.getTime();
var arrs=enddate.split("-");
var lktime=new Date(arrs[0],arrs[1],arrs[2]);
var lktimes=lktime.getTime();
if(starttimes>=lktimes)
{
return false;
}
else
return true;
}
第二种：
JavaScript代码
//验证是否合法日期
function CheckDate(strDate){
if(strDate.length>0){
var reg= /^(\d )-(\d{1,2})-(\d{1,2}) (\d{1,2}):(\d{1,2}):(\d{1,2})$/;
if(!reg.test(strDate)){
return false;
}
}
return true;
}
function isStartEndDate(startDate,endDate){
//alert(startDate "===" endDate);
if(startDate.length>0&&endDate.length>0){
var startDateTemp = startDate.split(" ");
var endDateTemp = endDate.split(" ");
var arrStartDate = startDateTemp[0].split("-");
var arrEndDate = endDateTemp[0].split("-");
var arrStartTime = startDateTemp[1].split(":");
var arrEndTime = endDateTemp[1].split(":");
var allStartDate = new Date(arrStartDate[0],arrStartDate[1],arrStartDate[2],arrStartTime[0],arrStartTime[1],arrStartTime[2]);
var allEndDate = new Date(arrEndDate[0],arrEndDate[1],arrEndDate[2],arrEndTime[0],arrEndTime[1],arrEndTime[2]);
if(allStartDate.getTime()>allEndDate.getTime()){
return false;
}
}
return true;
}
function checkAskDate(StartDate,EndDate){
if(!CheckDate(StartDate.value)){
alert("开始日期格式不正确!\n正确格式为:2004-01-01 00:00");
StartDate.focus();
return false;
}
if(!CheckDate(EndDate.value)){
alert("结束日期格式不正确!\n正确格式为:2004-01-01 00:00");
EndDate.focus();
return false;
}
if(!isStartEndDate(StartDate.value,EndDate.value)){
alert("开始日期不能大于结束日期");
return false;
}
return true;
}
============================================================================
日期格式:XXXX年-XX月-XX日
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<HTML>
<HEAD>
<TITLE> New document．</TITLE>
<SCRIPT LANGUAGE="javascript">
function judgeDate()
{
var date1 = document．getElementById("dt1").value.replace(/-/g, "/");
var date2 = document．getElementById("dt2").value.replace(/-/g, "/");
var d1 = new Date(date1);
var d2 = new Date(date2);
if(Date.parse(d1) - Date.parse(d2)==0)
{
alert(date1 "等于" date2)
}
if(Date.parse(d1) - Date.parse(d2)<0)
{
alert(date1 "晚于" date2)
}
if(Date.parse(d1) - Date.parse(d2)>0)
{
alert(date1 "早于" date2)
}
}
</SCRIPT>
</HEAD>
<BODY>
<input id="dt1" value="2007-09-09" />
<input id="dt2" value="2007-10-10"/>
<input type="button" value="提交" onclick="judgeDate()"/>
</BODY>
</HTML>
=============================================================
<script language="javascript">
function test(str1,str2)
{
var d1 = new Date(str1);
var d2 = new Date(str2);
if(Date.parse(d1) - Date.parse(d2)==0)
{
alert(str1 "等于" str2)
}
if(Date.parse(d1) - Date.parse(d2)<0)
{
alert(str1 "早于" str2)
}
if(Date.parse(d1) - Date.parse(d2)>0)
{
alert(str1 "晚于" str2)
}
}
</script>
<input type="button" value="确定" onclick="test('2005/4/12','2006/4/12')">