Javascript 如何验证 MM/dd/yyyy hh:mm 格式的 DateTime？
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How to validate the DateTime of MM/dd/yyyy hh:mm format?
提问by Lakshmitha
I am using MaskedEditExtender for entering a datetime. I am unable to figure out how to validate it.
我正在使用 MaskedEditExtender 输入日期时间。我无法弄清楚如何验证它。
Is there any Regular Expression for validating dates along with time MM/dd/yyyy hh:mm
是否有任何正则表达式用于验证日期以及时间 MM/dd/yyyy hh:mm
or any Javascript function ??
或任何 Javascript 函数？
回答by Harun
THis will solve your issue:
这将解决您的问题：
^(([0]?[1-9]|1[0-2])/([0-2]?[0-9]|3[0-1])/[1-2]\d{3}) (20|21|22|23|[0-1]?\d{1}):([0-5]?\d{1})$
回答by mplungjan
Javascript has Date.parse
Javascript 有Date.parse
it takes US formatted date of mm/dd/yyyy hh:mm:ss
它需要美国格式的日期 mm/dd/yyyy hh:mm:ss
alert(new Date(Date.parse("09/10/2011 12:00")))
alert(new Date(Date.parse("09/10/2011 12:00")))
will return 10th September 2011 at noon
将于 2011 年 9 月 10 日中午返回
回答by Oded
Use DateTime.Parseor DateTime.TryParse(there are also ParseExactand TryParseExactequivalents).
使用DateTime.Parse或DateTime.TryParse（也有ParseExact和TryParseExact等价物）。
If the string does not represent a valid DateTimeit will not parse.
如果字符串不代表有效DateTime，则不会解析。
DateTime myDateTime = DateTime.ParseExact(myString,
"MM/dd/yyyy hh:mm",
CultureInfo.InvariantCulture);
The above will throw an exception if the value is not parseable. Use the Tryvariant if you want to avoid the chance of the exception being thrown - this requires an outparameter and testing the return value of the function for success.
如果该值不可解析，则上述内容将引发异常。Try如果您想避免抛出异常的机会，请使用该变体 - 这需要一个out参数并测试函数的返回值是否成功。
回答by Alexander Tsepkov
And just in case you want the regular expression, this should work:
以防万一你想要正则表达式，这应该有效：
^(0[1-9]|1[012])/(0[1-9]|[12][0-9]|3[01])/(19|20)\d\d ([01]\d|2[0-3]):[0-5]\d$
回答by user2160658
You may try following Function that Validates date in "dd/MM/yyyy HH:mm"format
您可以尝试按照“dd/MM/yyyy HH:mm”格式验证日期的功能
function ValidateDate(dt) {
try {
var isValidDate = false;
var arr1 = dt.split('/');
var year=0;var month=0;var day=0;var hour=0;var minute=0;var sec=0;
if(arr1.length == 3)
{
var arr2 = arr1[2].split(' ');
if(arr2.length == 2)
{
var arr3 = arr2[1].split(':');
try{
year = parseInt(arr2[0],10);
month = parseInt(arr1[1],10);
day = parseInt(arr1[0],10);
hour = parseInt(arr3[0],10);
minute = parseInt(arr3[1],10);
//sec = parseInt(arr3[0],10);
sec = 0;
var isValidTime=false;
if(hour >=0 && hour <=23 && minute >=0 && minute<=59 && sec >=0 && sec<=59)
isValidTime=true;
else if(hour ==24 && minute ==0 && sec==0)
isValidTime=true;
if(isValidTime)
{
var isLeapYear = false;
if(year % 4 == 0)
isLeapYear = true;
if((month==4 || month==6|| month==9|| month==11) && (day>=0 && day <= 30))
isValidDate=true;
else if((month!=2) && (day>=0 && day <= 31))
isValidDate=true;
if(!isValidDate){
if(isLeapYear)
{
if(month==2 && (day>=0 && day <= 29))
isValidDate=true;
}
else
{
if(month==2 && (day>=0 && day <= 28))
isValidDate=true;
}
}
}
}
catch(er){isValidDate = false;}
}
}
return isValidDate;
}
catch (err) { alert('ValidateDate: ' + err); }
}
