Checking if a date is valid in javascript [duplicate]

Question

Possible Duplicate:
Detecting an “invalid date” Date instance in JavaScript

Is there is a function IsDate() in javascript?

Answer 1

Try this:

var date = new Date(); console.log(date instanceof Date && !isNaN(date.valueOf())); 

This should return true.

UPDATED: Added isNaN check to handle the case commented by Julian H. Lam