1
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var baseTimes = require('./_baseTimes'),
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2
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castFunction = require('./_castFunction'),
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3
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toInteger = require('./toInteger');
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4
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|
5
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/** Used as references for various `Number` constants. */
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6
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var MAX_SAFE_INTEGER = 9007199254740991;
|
7
|
|
8
|
/** Used as references for the maximum length and index of an array. */
|
9
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var MAX_ARRAY_LENGTH = 4294967295;
|
10
|
|
11
|
/* Built-in method references for those with the same name as other `lodash` methods. */
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12
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var nativeMin = Math.min;
|
13
|
|
14
|
/**
|
15
|
* Invokes the iteratee `n` times, returning an array of the results of
|
16
|
* each invocation. The iteratee is invoked with one argument; (index).
|
17
|
*
|
18
|
* @static
|
19
|
* @since 0.1.0
|
20
|
* @memberOf _
|
21
|
* @category Util
|
22
|
* @param {number} n The number of times to invoke `iteratee`.
|
23
|
* @param {Function} [iteratee=_.identity] The function invoked per iteration.
|
24
|
* @returns {Array} Returns the array of results.
|
25
|
* @example
|
26
|
*
|
27
|
* _.times(3, String);
|
28
|
* // => ['0', '1', '2']
|
29
|
*
|
30
|
* _.times(4, _.constant(0));
|
31
|
* // => [0, 0, 0, 0]
|
32
|
*/
|
33
|
function times(n, iteratee) {
|
34
|
n = toInteger(n);
|
35
|
if (n < 1 || n > MAX_SAFE_INTEGER) {
|
36
|
return [];
|
37
|
}
|
38
|
var index = MAX_ARRAY_LENGTH,
|
39
|
length = nativeMin(n, MAX_ARRAY_LENGTH);
|
40
|
|
41
|
iteratee = castFunction(iteratee);
|
42
|
n -= MAX_ARRAY_LENGTH;
|
43
|
|
44
|
var result = baseTimes(length, iteratee);
|
45
|
while (++index < n) {
|
46
|
iteratee(index);
|
47
|
}
|
48
|
return result;
|
49
|
}
|
50
|
|
51
|
module.exports = times;
|