Regular expression for Dutch zip / postal code

Question

I\'m trying to build a regular expression in javascript to validate a Dutch zipcode.

The zipcode should contain 4 numbers, then optionally a space and then 2 (case insen

Answer 1

In case you have trouble using this as pattern for bootstrap validation I suggest you change it to:

    ^[1-9][0-9]{3} ?(?!sa|sd|ss|SA|SD|SS)[A-Za-z]{2}$

This way it is still case-insensitive and accepted by the bootstrap validator.