lodash/utility/matches.js

define(['../internal/baseClone', '../internal/baseMatches'], function(baseClone, baseMatches) {

  /**
   * Creates a function which performs a deep comparison between a given object
   * and `source`, returning `true` if the given object has equivalent property
   * values, else `false`.
   *
   * @static
   * @memberOf _
   * @category Utility
   * @param {Object} source The object of property values to match.
   * @returns {Function} Returns the new function.
   * @example
   *
   * var users = [
   *   { 'user': 'fred',   'age': 40 },
   *   { 'user': 'barney', 'age': 36 }
   * ];
   *
   * var matchesAge = _.matches({ 'age': 36 });
   *
   * _.filter(users, matchesAge);
   * // => [{ 'user': 'barney', 'age': 36 }]
   *
   * _.find(users, matchesAge);
   * // => { 'user': 'barney', 'age': 36 }
   */
  function matches(source) {
    return baseMatches(baseClone(source, true));
  }

  return matches;
});