Telephone Number Validator

telephoneNumberValidator.js

function telephoneCheck(str) {
  // valid patterns
  var p01 = new RegExp('^[1]\\s\\d\\d\\d-\\d\\d\\d-\\d\\d\\d\\d$');
  var p02 = new RegExp('^[1]\\s\\d\\d\\d\\s\\d\\d\\d\\s\\d\\d\\d\\d$');
  var p03 = new RegExp('^[1]\\s\\d\\d\\d\\d\\d\\d\\d\\d\\d\\d$');
  var p04 = new RegExp('^[1]\\(\\d\\d\\d\\)\\d\\d\\d-\\d\\d\\d\\d$');
  var p05 = new RegExp('^[1]\\s\\(\\d\\d\\d\\)\\s\\d\\d\\d-\\d\\d\\d\\d$');
  var p1 = new RegExp('^\\d\\d\\d-\\d\\d\\d-\\d\\d\\d\\d$');
  var p2 = new RegExp('^\\d\\d\\d\\s\\d\\d\\d\\s\\d\\d\\d\\d$');
  var p3 = new RegExp('^\\d\\d\\d\\d\\d\\d\\d\\d\\d\\d$');
  var p4 = new RegExp('^\\(\\d\\d\\d\\)\\d\\d\\d-\\d\\d\\d\\d$');
  var p5 = new RegExp('^\\(\\d\\d\\d\\)\\s\\d\\d\\d-\\d\\d\\d\\d$');
  // validator
  if (str.match(p01) || str.match(p02) || str.match(p03) || str.match(p04) || str.match(p05) || str.match(p1) || str.match(p2) || str.match(p3) || str.match(p4)){return true;}else{return false;}
}
telephoneCheck("555-555-5555");

TelephoneNumberValidator.markdown

Telephone Number Validator

Function returns true if the passed string is a valid US phone number, otherwise false. If the country code is provided, function checks if the country code is 1. The following are all valid formats for US numbers: 555-555-5555 (555)555-5555 (555) 555-5555 555 555 5555 5555555555 1 555 555 5555

A script by V.

License.