text: 'use strict';
  
  Object.defineProperty(exports, "__esModule", {
    value: true
  });
  exports.default = isAlpha;
  
  var _assertString = require('./util/assertString');
  
  var _assertString2 = _interopRequireDefault(_assertString);
  
  var _alpha = require('./alpha');
  
  function _interopRequireDefault(obj) {
    return obj && obj.__esModule ? obj : {default: obj};
  }
  
  function isAlpha(str) {
    var locale = arguments.length <= 1 || arguments[1] === undefined ? 'en-US' : arguments[1];
  
    (0, _assertString2.default)(str);
    if (locale in _alpha.alpha) {
      return _alpha.alpha[locale].test(str);
    }
    throw new Error('Invalid locale \'' + locale + '\'');
  }
  module.exports = exports['default'];