code: function split(string, separator, limit) {
    if (limit && typeof limit != 'number' && _isIterateeCall(string, separator, limit)) {
      separator = limit = undefined;
    }
    limit = limit === undefined ? MAX_ARRAY_LENGTH : limit >>> 0;
    if (!limit) {
      return [];
    }
    string = toString_1(string);
    if (string && (
          typeof separator == 'string' ||
          (separator != null && !isRegExp_1(separator))
        )) {
      separator = _baseToString(separator);
      if (!separator && _hasUnicode(string)) {
        return _castSlice(_stringToArray(string), 0, limit);
      }
    }
    return string.split(separator, limit);
  }
docs: Splits `string` by `separator`.
  
  **Note:** This method is based on
  [`String#split`](https://mdn.io/String/split).
  
  @static
  @memberOf _
  @since 4.0.0
  @category String
  @param {string} [string=''] The string to split.
  @param {RegExp|string} separator The separator pattern to split by.
  @param {number} [limit] The length to truncate results to.
  @returns {Array} Returns the string segments.
  @example
  
  _.split('a-b-c', '-', 2);
  // => ['a', 'b']