1 | var arraySome = require('./_arraySome'),
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2 | baseIteratee = require('./_baseIteratee'),
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3 | baseSome = require('./_baseSome'),
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4 | isArray = require('./isArray'),
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5 | isIterateeCall = require('./_isIterateeCall');
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6 |
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7 | /**
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8 | * Checks if `predicate` returns truthy for **any** element of `collection`.
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9 | * Iteration is stopped once `predicate` returns truthy. The predicate is
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10 | * invoked with three arguments: (value, index|key, collection).
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11 | *
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12 | * @static
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13 | * @memberOf _
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14 | * @since 0.1.0
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15 | * @category Collection
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16 | * @param {Array|Object} collection The collection to iterate over.
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17 | * @param {Function} [predicate=_.identity] The function invoked per iteration.
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18 | * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.
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19 | * @returns {boolean} Returns `true` if any element passes the predicate check,
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20 | * else `false`.
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21 | * @example
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22 | *
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23 | * _.some([null, 0, 'yes', false], Boolean);
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24 | * // => true
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25 | *
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26 | * var users = [
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27 | * { 'user': 'barney', 'active': true },
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28 | * { 'user': 'fred', 'active': false }
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29 | * ];
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30 | *
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31 | * // The `_.matches` iteratee shorthand.
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32 | * _.some(users, { 'user': 'barney', 'active': false });
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33 | * // => false
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34 | *
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35 | * // The `_.matchesProperty` iteratee shorthand.
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36 | * _.some(users, ['active', false]);
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37 | * // => true
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38 | *
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39 | * // The `_.property` iteratee shorthand.
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40 | * _.some(users, 'active');
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41 | * // => true
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42 | */
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43 | function some(collection, predicate, guard) {
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44 | var func = isArray(collection) ? arraySome : baseSome;
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45 | if (guard && isIterateeCall(collection, predicate, guard)) {
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46 | predicate = undefined;
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47 | }
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48 | return func(collection, baseIteratee(predicate, 3));
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49 | }
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50 |
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51 | module.exports = some;
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