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