Q1349 How can I check that a string contains a date?

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Q1349 How can I check that a string contains a date?

Try the following:

Note that it doesn't check to see if the date is a valid date, i.e. the 30th Feb 2000 does not exist, but it still parses as a valid date string. If you need to check that the date exists see the answer to FAQ #1 - How do you check if a date is valid?.

<script language="JavaScript"><!--
function validateDate(date) {
    // NaN is never equal to itself.
    if (Date.parse(date) != Date.parse(date))
        document.write(date + ' - Invalid date<br>');
    else
        document.write(date + ' - Valid date<br>');
}


validateDate('hello world');
validateDate('29 January 1999');
validateDate('February 30 2000');
validateDate('Sat 8 2000 Jan');
//--></script>

Feedback on 'Q1349 How can I check that a string contains a date?'

• Tuesday June 19, 2007 at 21:31:19 John