Last change
on this file since 6fe77af was 6a3a178, checked in by Ema <ema_spirova@…>, 3 years ago |
initial commit
|
-
Property mode
set to
100644
|
File size:
1.0 KB
|
Line | |
---|
1 | var arraySampleSize = require('./_arraySampleSize'),
|
---|
2 | baseSampleSize = require('./_baseSampleSize'),
|
---|
3 | isArray = require('./isArray'),
|
---|
4 | isIterateeCall = require('./_isIterateeCall'),
|
---|
5 | toInteger = require('./toInteger');
|
---|
6 |
|
---|
7 | /**
|
---|
8 | * Gets `n` random elements at unique keys from `collection` up to the
|
---|
9 | * size of `collection`.
|
---|
10 | *
|
---|
11 | * @static
|
---|
12 | * @memberOf _
|
---|
13 | * @since 4.0.0
|
---|
14 | * @category Collection
|
---|
15 | * @param {Array|Object} collection The collection to sample.
|
---|
16 | * @param {number} [n=1] The number of elements to sample.
|
---|
17 | * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.
|
---|
18 | * @returns {Array} Returns the random elements.
|
---|
19 | * @example
|
---|
20 | *
|
---|
21 | * _.sampleSize([1, 2, 3], 2);
|
---|
22 | * // => [3, 1]
|
---|
23 | *
|
---|
24 | * _.sampleSize([1, 2, 3], 4);
|
---|
25 | * // => [2, 3, 1]
|
---|
26 | */
|
---|
27 | function sampleSize(collection, n, guard) {
|
---|
28 | if ((guard ? isIterateeCall(collection, n, guard) : n === undefined)) {
|
---|
29 | n = 1;
|
---|
30 | } else {
|
---|
31 | n = toInteger(n);
|
---|
32 | }
|
---|
33 | var func = isArray(collection) ? arraySampleSize : baseSampleSize;
|
---|
34 | return func(collection, n);
|
---|
35 | }
|
---|
36 |
|
---|
37 | module.exports = sampleSize;
|
---|
Note:
See
TracBrowser
for help on using the repository browser.