javascript - ZIP Code (US Postal Code) validation

Question

question from:https://stackoverflow.com/questions/160550/zip-code-us-postal-code-validation

Answer 1

Javascript Regex Literal:

US Zip Codes: /(^d{5}$)|(^d{5}-d{4}$)/

var isValidZip = /(^d{5}$)|(^d{5}-d{4}$)/.test("90210");

Some countries use Postal Codes, which would fail this pattern.