acha-framework/src/backend/string-helpers.js

is a modular framework on both client (angular.js) and server (node.js) side, it provides security, orm, ioc, obfuscation and ...

(function (undefined) {
  Ioc.define('backend.stringHelper', [], function (provide) {
    provide({
      isEmail: function (email) {
        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,}))$/;
        return re.test(email);
      },
      isMobile: function (str) {
        str = str || '';
        return str.length === 11 && str[0] === '0';
      },
      isAlphanumeric: function (str) {
        return /^([a-zA-Z0-9_]+)$/.test(str || '');
      },
      isNumber: function (str) {
        return /^\d+$/.test(str);
      }
    });
  });
}());