Custom Validators

Custom Validators

Basic type validators exposed exported as is object. So you can extend it:

import { validate, is } from "bycontract";
is.email = function( val ){
  var re = /^(([^<>()[\]\\.,;:\s@"]+(\.[^<>()[\]\\.,;:\s@"]+)*)|(".+"))@((\[[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}])|(([a-zA-Z\-0-9]+\.)+[a-zA-Z]{2,}))$/;
  return re.test( val );
}
validate( "[e-mail]", "email" ); // ok
validate( "bla-bla", "email" ); // ByContractError: expected email but got string