Javascript Regular Expression for International Phone Number

Question

The following regular expression isn\'t working for international phone numbers that can allow up to 15 digits:

^[a-zA-Z0-9-().\\s]{10,15}$

W

Answer 1

You may find the following regex more useful, it basically first strips all valid special characters which an international phone number can contain (spaces, parens, +, -, ., ext) and then counts if there are at least 7 digits (minimum length for a valid local number).

function isValidPhonenumber(value) {
    return (/^\d{7,}$/).test(value.replace(/[\s()+\-\.]|ext/gi, ''));
}