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					57 lines
				
				1.8 KiB
			
		
		
			
		
	
	
					57 lines
				
				1.8 KiB
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											3 years ago
										 
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								var arrayEvery = require('./_arrayEvery'),
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								    baseEvery = require('./_baseEvery'),
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								    baseIteratee = require('./_baseIteratee'),
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								    isArray = require('./isArray'),
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								    isIterateeCall = require('./_isIterateeCall');
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								/**
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								 * Checks if `predicate` returns truthy for **all** elements of `collection`.
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								 * Iteration is stopped once `predicate` returns falsey. The predicate is
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								 * invoked with three arguments: (value, index|key, collection).
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								 *
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								 * **Note:** This method returns `true` for
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								 * [empty collections](https://en.wikipedia.org/wiki/Empty_set) because
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								 * [everything is true](https://en.wikipedia.org/wiki/Vacuous_truth) of
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								 * elements of empty collections.
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								 *
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								 * @static
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								 * @memberOf _
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								 * @since 0.1.0
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								 * @category Collection
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								 * @param {Array|Object} collection The collection to iterate over.
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								 * @param {Function} [predicate=_.identity] The function invoked per iteration.
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								 * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.
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								 * @returns {boolean} Returns `true` if all elements pass the predicate check,
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								 *  else `false`.
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								 * @example
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								 *
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								 * _.every([true, 1, null, 'yes'], Boolean);
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								 * // => false
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								 *
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								 * var users = [
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								 *   { 'user': 'barney', 'age': 36, 'active': false },
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								 *   { 'user': 'fred',   'age': 40, 'active': false }
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								 * ];
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								 *
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								 * // The `_.matches` iteratee shorthand.
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								 * _.every(users, { 'user': 'barney', 'active': false });
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								 * // => false
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								 *
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								 * // The `_.matchesProperty` iteratee shorthand.
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								 * _.every(users, ['active', false]);
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								 * // => true
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								 *
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								 * // The `_.property` iteratee shorthand.
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								 * _.every(users, 'active');
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								 * // => false
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								 */
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								function every(collection, predicate, guard) {
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								  var func = isArray(collection) ? arrayEvery : baseEvery;
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								  if (guard && isIterateeCall(collection, predicate, guard)) {
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								    predicate = undefined;
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								  }
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								  return func(collection, baseIteratee(predicate, 3));
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								}
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								module.exports = every;
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