JavaScript Zip Code Validation
A 5-digit United States Zip Code can be validated in JavaScript with a regular expression:
/^\d{5}$/.test('84601')
This specifies that the string being tested must begin and end as a digit with a length of five.
A 5-digit United States Zip Code can be validated in JavaScript with a regular expression:
/^\d{5}$/.test('84601')
This specifies that the string being tested must begin and end as a digit with a length of five.