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