Function shimKeys

lib/web/jshint.js:5919–5938

* A fallback implementation of `Object.keys` which creates an array of the * own enumerable property names of `object`. * * @private * @param {Object} object The object to query. * @returns {Array} Returns the array of property names.

(object)

     * @returns {Array} Returns the array of property names.
     */
    function shimKeys(object) {
      var props = keysIn(object),
          propsLength = props.length,
          length = propsLength && object.length,
          support = lodash.support;

      var allowIndexes = length && isLength(length) &&
        (isArray(object) || (support.nonEnumArgs && isArguments(object)));

      var index = -1,
          result = [];

      while (++index < propsLength) {
        var key = props[index];
        if ((allowIndexes && isIndex(key, length)) || hasOwnProperty.call(object, key)) {
          result.push(key);
        }
      }
      return result;
    }

    /**
     * Converts `value` to an array-like object if it is not one.