Question

I am trying to run a regex check using javascript to be sure that the string follows the pattern:

NNNN-NN-NN

(where N = any number 0-9) I need to be sure the dashes are in place as well.

So, any 4 numbers followed by a dash followed by any 2 numbers followed by a dash followed by any two numbers.

How do I write that as a regex?

Answer 1

Here it is:

^[0-9]{4}-[0-9]{2}-[0-9]{2}$