var _curry1 = require('./internal/_curry1');


/**
 * Returns a list containing the names of all the
 * properties of the supplied object, including prototype properties.
 * Note that the order of the output array is not guaranteed to be
 * consistent across different JS platforms.
 *
 * @func
 * @memberOf R
 * @category Object
 * @sig {k: v} -> [k]
 * @param {Object} obj The object to extract properties from
 * @return {Array} An array of the object's own and prototype properties.
 * @example
 *
 *      var F = function() { this.x = 'X'; };
 *      F.prototype.y = 'Y';
 *      var f = new F();
 *      R.keysIn(f); //=> ['x', 'y']
 */
module.exports = _curry1(function keysIn(obj) {
  var prop, ks = [];
  for (prop in obj) {
    ks[ks.length] = prop;
  }
  return ks;
});