code: function parseInt(string, radix, guard) {
          // Chrome fails to trim leading <BOM> whitespace characters.
          // See https://code.google.com/p/v8/issues/detail?id=3109 for more details.
          if (guard || radix == null) {
            radix = 0;
          } else if (radix) {
            radix = +radix;
          }
          string = toString(string).replace(reTrim, '');
          return nativeParseInt(string, radix || (reHasHexPrefix.test(string) ? 16 : 10));
        }
docs: Converts `string` to an integer of the specified radix. If `radix` is
  `undefined` or `0`, a `radix` of `10` is used unless `value` is a hexadecimal,
  in which case a `radix` of `16` is used.
  
  **Note:** This method aligns with the [ES5 implementation](https://es5.github.io/#x15.1.2.2)
  of `parseInt`.
  
  @static
  @memberOf _
  @category String
  @param {string} string The string to convert.
  @param {number} [radix=10] The radix to interpret `value` by.
  @param- {Object} [guard] Enables use as an iteratee for functions like `_.map`.
  @returns {number} Returns the converted integer.
  @example
  
  _.parseInt('08');
  // => 8
  
  _.map(['6', '08', '10'], _.parseInt);
  // => [6, 8, 10]