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69

Javascript - Regex to validate date format

rated 0 times [ 75] [ 6] / answers: 1 / hits: 167606 / 13 Years ago, mon, september 12, 2011, 12:00:00

Is there any way to have a regex in JavaScript that validates dates of multiple formats, like: DD-MM-YYYY or DD.MM.YYYY or DD/MM/YYYY etc? I need all these in one regex and I'm not really good with it. So far I've come up with this: var dateReg = /^d{2}-d{2}-d{4}$/; for DD-MM-YYYY. I only need to validate the date format, not the date itself.

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jalyn

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1 Year ago

answered 13 Years ago aileenreynap · Accepted Answer

You could use a character class ([./-]) so that the seperators can be any of the defined characters

var dateReg = /^d{2}[./-]d{2}[./-]d{4}$/

Or better still, match the character class for the first seperator, then capture that as a group ([./-]) and use a reference to the captured group 1 to match the second seperator, which will ensure that both seperators are the same:

var dateReg = /^d{2}([./-])d{2}1d{4}$/



22-03-1981.match(dateReg) // matches

22.03-1981.match(dateReg) // does not match

22.03.1981.match(dateReg) // matches