How to validate date in chrome browser as well as in firefox browser

The Javascript Date API can have somewhat mixed results between browsers, as you've discovered.

The best option I can suggest is to use one of the third-party libraries that are available for this. There are two I can recommend -- either Moment.js or Date.js.

Both of these libs have much better validation and parsing, and are more consistent cross-browser than the built-in Date class.

The correct answer is to use a Javascript library as @Spudley suggested like moment.js.

However, if you don't want to include that awesome library (or another like it), you could try running your date through a regex like this:

var date = "9/",    pattern = /(?:(?:\d{2}[-\/]){2}\d{4})|(?:\d{4}(?:[-\/]\d{2}){2})/,    isValid = false;isValid = pattern.test( date );

This will match yyyy/mm/dd, dd/mm/yyyy, mm/dd/yyyy and yyyy/dd/mm (plus a number of variations [and issues]).

However, this is extremely naive, doesn't match the vast majority of date formats, allows mixed separators, and a wide array of other issues.

Again, I strongly recommend you implement a library like moment.js, but this regex might be a start.