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Validate Date in ASP – IsDate VBScript function
The IsDate VBScript function offers an easy way to validate a date in your server-side ASP code. As you might have expected the IsDate VBScript function takes only one parameter – date or string that represents any valid date/time format. The IsDate function returns a Boolean value (True or False) indicating whether an expression is a valid date or can be converted to a valid date. To illustrate the usage of IsDate function let’s have a look at the following self-explanatory examples:


Response.Write IsDate("January 1, 2004") ' Prints True
Response.Write IsDate(#1/1/04#) ' Prints True
Response.Write IsDate("This is not a valid date") ' Prints False
Response.Write IsDate("10:54") ' Prints True

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