1 |
3a515b92
|
cagy
|
var isArray = require('./isArray');
|
2 |
|
|
|
3 |
|
|
/**
|
4 |
|
|
* Casts `value` as an array if it's not one.
|
5 |
|
|
*
|
6 |
|
|
* @static
|
7 |
|
|
* @memberOf _
|
8 |
|
|
* @since 4.4.0
|
9 |
|
|
* @category Lang
|
10 |
|
|
* @param {*} value The value to inspect.
|
11 |
|
|
* @returns {Array} Returns the cast array.
|
12 |
|
|
* @example
|
13 |
|
|
*
|
14 |
|
|
* _.castArray(1);
|
15 |
|
|
* // => [1]
|
16 |
|
|
*
|
17 |
|
|
* _.castArray({ 'a': 1 });
|
18 |
|
|
* // => [{ 'a': 1 }]
|
19 |
|
|
*
|
20 |
|
|
* _.castArray('abc');
|
21 |
|
|
* // => ['abc']
|
22 |
|
|
*
|
23 |
|
|
* _.castArray(null);
|
24 |
|
|
* // => [null]
|
25 |
|
|
*
|
26 |
|
|
* _.castArray(undefined);
|
27 |
|
|
* // => [undefined]
|
28 |
|
|
*
|
29 |
|
|
* _.castArray();
|
30 |
|
|
* // => []
|
31 |
|
|
*
|
32 |
|
|
* var array = [1, 2, 3];
|
33 |
|
|
* console.log(_.castArray(array) === array);
|
34 |
|
|
* // => true
|
35 |
|
|
*/
|
36 |
|
|
function castArray() {
|
37 |
|
|
if (!arguments.length) {
|
38 |
|
|
return [];
|
39 |
|
|
}
|
40 |
|
|
var value = arguments[0];
|
41 |
|
|
return isArray(value) ? value : [value];
|
42 |
|
|
}
|
43 |
|
|
|
44 |
|
|
module.exports = castArray;
|