HORIZON PROJECT

var arrayEvery = require('./_arrayEvery'),

    baseEvery = require('./_baseEvery'),

    baseIteratee = require('./_baseIteratee'),

    isArray = require('./isArray'),

    isIterateeCall = require('./_isIterateeCall');

/**

 * Checks if `predicate` returns truthy for **all** elements of `collection`.

 * Iteration is stopped once `predicate` returns falsey. The predicate is

 * invoked with three arguments: (value, index|key, collection).

 *

 * **Note:** This method returns `true` for

 * [empty collections](https://en.wikipedia.org/wiki/Empty_set) because

 * [everything is true](https://en.wikipedia.org/wiki/Vacuous_truth) of

 * elements of empty collections.

 *

 * @static

 * @memberOf _

 * @since 0.1.0

 * @category Collection

 * @param {Array|Object} collection The collection to iterate over.

 * @param {Function} [predicate=_.identity] The function invoked per iteration.

 * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.

 * @returns {boolean} Returns `true` if all elements pass the predicate check,

 *  else `false`.

 * @example

 *

 * _.every([true, 1, null, 'yes'], Boolean);

 * // => false

 *

 * var users = [

 *   { 'user': 'barney', 'age': 36, 'active': false },

 *   { 'user': 'fred',   'age': 40, 'active': false }

 * ];

 *

 * // The `_.matches` iteratee shorthand.

 * _.every(users, { 'user': 'barney', 'active': false });

 * // => false

 *

 * // The `_.matchesProperty` iteratee shorthand.

 * _.every(users, ['active', false]);

 * // => true

 *

 * // The `_.property` iteratee shorthand.

 * _.every(users, 'active');

 * // => false

 */

function every(collection, predicate, guard) {

  var func = isArray(collection) ? arrayEvery : baseEvery;

  if (guard && isIterateeCall(collection, predicate, guard)) {

    predicate = undefined;

  }

  return func(collection, baseIteratee(predicate, 3));

}

module.exports = every;