root / HServer / 00.Server / 00.Program / node_modules / lodash / some.js
이력 | 보기 | 이력해설 | 다운로드 (1.57 KB)
1 | 39 | HKM | var arraySome = require('./_arraySome'), |
---|---|---|---|
2 | baseIteratee = require('./_baseIteratee'),
|
||
3 | baseSome = require('./_baseSome'),
|
||
4 | isArray = require('./isArray'),
|
||
5 | isIterateeCall = require('./_isIterateeCall');
|
||
6 | |||
7 | /**
|
||
8 | * Checks if `predicate` returns truthy for **any** element of `collection`.
|
||
9 | * Iteration is stopped once `predicate` returns truthy. The predicate is
|
||
10 | * invoked with three arguments: (value, index|key, collection).
|
||
11 | *
|
||
12 | * @static
|
||
13 | * @memberOf _
|
||
14 | * @since 0.1.0
|
||
15 | * @category Collection
|
||
16 | * @param {Array|Object} collection The collection to iterate over.
|
||
17 | * @param {Function} [predicate=_.identity] The function invoked per iteration.
|
||
18 | * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.
|
||
19 | * @returns {boolean} Returns `true` if any element passes the predicate check,
|
||
20 | * else `false`.
|
||
21 | * @example
|
||
22 | *
|
||
23 | * _.some([null, 0, 'yes', false], Boolean);
|
||
24 | * // => true
|
||
25 | *
|
||
26 | * var users = [
|
||
27 | * { 'user': 'barney', 'active': true },
|
||
28 | * { 'user': 'fred', 'active': false }
|
||
29 | * ];
|
||
30 | *
|
||
31 | * // The `_.matches` iteratee shorthand.
|
||
32 | * _.some(users, { 'user': 'barney', 'active': false });
|
||
33 | * // => false
|
||
34 | *
|
||
35 | * // The `_.matchesProperty` iteratee shorthand.
|
||
36 | * _.some(users, ['active', false]);
|
||
37 | * // => true
|
||
38 | *
|
||
39 | * // The `_.property` iteratee shorthand.
|
||
40 | * _.some(users, 'active');
|
||
41 | * // => true
|
||
42 | */
|
||
43 | function some(collection, predicate, guard) { |
||
44 | var func = isArray(collection) ? arraySome : baseSome;
|
||
45 | if (guard && isIterateeCall(collection, predicate, guard)) {
|
||
46 | predicate = undefined;
|
||
47 | } |
||
48 | return func(collection, baseIteratee(predicate, 3)); |
||
49 | } |
||
50 | |||
51 | module.exports = some; |