1
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var Symbol = require('./_Symbol'),
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2
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copyArray = require('./_copyArray'),
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3
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getTag = require('./_getTag'),
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4
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isArrayLike = require('./isArrayLike'),
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5
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isString = require('./isString'),
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6
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iteratorToArray = require('./_iteratorToArray'),
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7
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mapToArray = require('./_mapToArray'),
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8
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setToArray = require('./_setToArray'),
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9
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stringToArray = require('./_stringToArray'),
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10
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values = require('./values');
|
11
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|
12
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/** `Object#toString` result references. */
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13
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var mapTag = '[object Map]',
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14
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setTag = '[object Set]';
|
15
|
|
16
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/** Built-in value references. */
|
17
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var symIterator = Symbol ? Symbol.iterator : undefined;
|
18
|
|
19
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/**
|
20
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* Converts `value` to an array.
|
21
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*
|
22
|
* @static
|
23
|
* @since 0.1.0
|
24
|
* @memberOf _
|
25
|
* @category Lang
|
26
|
* @param {*} value The value to convert.
|
27
|
* @returns {Array} Returns the converted array.
|
28
|
* @example
|
29
|
*
|
30
|
* _.toArray({ 'a': 1, 'b': 2 });
|
31
|
* // => [1, 2]
|
32
|
*
|
33
|
* _.toArray('abc');
|
34
|
* // => ['a', 'b', 'c']
|
35
|
*
|
36
|
* _.toArray(1);
|
37
|
* // => []
|
38
|
*
|
39
|
* _.toArray(null);
|
40
|
* // => []
|
41
|
*/
|
42
|
function toArray(value) {
|
43
|
if (!value) {
|
44
|
return [];
|
45
|
}
|
46
|
if (isArrayLike(value)) {
|
47
|
return isString(value) ? stringToArray(value) : copyArray(value);
|
48
|
}
|
49
|
if (symIterator && value[symIterator]) {
|
50
|
return iteratorToArray(value[symIterator]());
|
51
|
}
|
52
|
var tag = getTag(value),
|
53
|
func = tag == mapTag ? mapToArray : (tag == setTag ? setToArray : values);
|
54
|
|
55
|
return func(value);
|
56
|
}
|
57
|
|
58
|
module.exports = toArray;
|