Validate date string in javascript

Use case

Today I got a question from my colleague for validating a date string in javascript.

After quick search on Google, I still don’t see have any solution for this so I write here to take note for reuse later :)

We can use moment library and standard format ISO_8601 to check

moment(date_str, moment.ISO_8601).isValid();

Examples

moment('2013-02-04T10:35:24-08:00', moment.ISO_8601).isValid(); // -> true
moment('2013-02-04', moment.ISO_8601).isValid();                // -> true
moment('2013-02-04 10:35', moment.ISO_8601).isValid();          // -> true
moment('2013-02-30 10:35', moment.ISO_8601).isValid();          // -> false, no 30 in Feb :)
moment('x', moment.ISO_8601).isValid();                         // -> false
moment('x 1', moment.ISO_8601).isValid();                       // -> false