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51 lines
1.3 KiB
51 lines
1.3 KiB
var baseTimes = require('./_baseTimes'), |
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castFunction = require('./_castFunction'), |
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toInteger = require('./toInteger'); |
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/** Used as references for various `Number` constants. */ |
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var MAX_SAFE_INTEGER = 9007199254740991; |
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/** Used as references for the maximum length and index of an array. */ |
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var MAX_ARRAY_LENGTH = 4294967295; |
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/* Built-in method references for those with the same name as other `lodash` methods. */ |
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var nativeMin = Math.min; |
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/** |
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* Invokes the iteratee `n` times, returning an array of the results of |
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* each invocation. The iteratee is invoked with one argument; (index). |
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* |
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* @static |
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* @since 0.1.0 |
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* @memberOf _ |
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* @category Util |
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* @param {number} n The number of times to invoke `iteratee`. |
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* @param {Function} [iteratee=_.identity] The function invoked per iteration. |
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* @returns {Array} Returns the array of results. |
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* @example |
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* |
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* _.times(3, String); |
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* // => ['0', '1', '2'] |
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* |
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* _.times(4, _.constant(0)); |
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* // => [0, 0, 0, 0] |
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*/ |
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function times(n, iteratee) { |
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n = toInteger(n); |
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if (n < 1 || n > MAX_SAFE_INTEGER) { |
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return []; |
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} |
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var index = MAX_ARRAY_LENGTH, |
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length = nativeMin(n, MAX_ARRAY_LENGTH); |
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iteratee = castFunction(iteratee); |
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n -= MAX_ARRAY_LENGTH; |
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var result = baseTimes(length, iteratee); |
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while (++index < n) { |
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iteratee(index); |
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} |
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return result; |
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} |
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module.exports = times;
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