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				841 B
			
		
		
			
		
	
	
					40 lines
				
				841 B
			| 
											3 years ago
										 | /* eslint no-constant-condition: 0 */ | ||
|  | /** | ||
|  |  * Obliterator Take Into Function | ||
|  |  * =============================== | ||
|  |  * | ||
|  |  * Same as the take function but enables the user to select an array class | ||
|  |  * in which to insert the retrieved values. | ||
|  |  */ | ||
|  | var iter = require('./iter.js'); | ||
|  | 
 | ||
|  | /** | ||
|  |  * Take Into. | ||
|  |  * | ||
|  |  * @param  {function} ArrayClass - Array class to use. | ||
|  |  * @param  {Iterable} iterable   - Target iterable. | ||
|  |  * @param  {number}   n          - Number of items to take. | ||
|  |  * @return {array} | ||
|  |  */ | ||
|  | module.exports = function takeInto(ArrayClass, iterable, n) { | ||
|  |   var array = new ArrayClass(n), | ||
|  |     step, | ||
|  |     i = 0; | ||
|  | 
 | ||
|  |   var iterator = iter(iterable); | ||
|  | 
 | ||
|  |   while (true) { | ||
|  |     if (i === n) return array; | ||
|  | 
 | ||
|  |     step = iterator.next(); | ||
|  | 
 | ||
|  |     if (step.done) { | ||
|  |       if (i !== n) return array.slice(0, i); | ||
|  | 
 | ||
|  |       return array; | ||
|  |     } | ||
|  | 
 | ||
|  |     array[i++] = step.value; | ||
|  |   } | ||
|  | }; |