blob: 78dcf4ce9bea5e56d1cc4a8e9939d0c306321331 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
|
var getLength = require('../internal/getLength'),
isLength = require('../internal/isLength'),
keys = require('../object/keys');
/**
* Gets the size of `collection` by returning its length for array-like
* values or the number of own enumerable properties for objects.
*
* @static
* @memberOf _
* @category Collection
* @param {Array|Object|string} collection The collection to inspect.
* @returns {number} Returns the size of `collection`.
* @example
*
* _.size([1, 2, 3]);
* // => 3
*
* _.size({ 'a': 1, 'b': 2 });
* // => 2
*
* _.size('pebbles');
* // => 7
*/
function size(collection) {
var length = collection ? getLength(collection) : 0;
return isLength(length) ? length : keys(collection).length;
}
module.exports = size;
|