lodash/pick.js

import arrayMap from './_arrayMap';
import baseFlatten from './_baseFlatten';
import basePick from './_basePick';
import rest from './rest';
import toKey from './_toKey';

/**
 * Creates an object composed of the picked `object` properties.
 *
 * @static
 * @since 0.1.0
 * @memberOf _
 * @category Object
 * @param {Object} object The source object.
 * @param {...(string|string[])} [props] The property identifiers to pick.
 * @returns {Object} Returns the new object.
 * @example
 *
 * var object = { 'a': 1, 'b': '2', 'c': 3 };
 *
 * _.pick(object, ['a', 'c']);
 * // => { 'a': 1, 'c': 3 }
 */
var pick = rest(function(object, props) {
  return object == null ? {} : basePick(object, arrayMap(baseFlatten(props, 1), toKey));
});

export default pick;