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967 BJavaScriptView Raw
1'use strict';
2var ArrayBufferViewCore = require('../internals/array-buffer-view-core');
3var typedArraySpeciesConstructor = require('../internals/typed-array-species-constructor');
4var fails = require('../internals/fails');
5var arraySlice = require('../internals/array-slice');
6
7var aTypedArray = ArrayBufferViewCore.aTypedArray;
8var exportTypedArrayMethod = ArrayBufferViewCore.exportTypedArrayMethod;
9
10var FORCED = fails(function () {
11 // eslint-disable-next-line es/no-typed-arrays -- required for testing
12 new Int8Array(1).slice();
13});
14
15// `%TypedArray%.prototype.slice` method
16// https://tc39.es/ecma262/#sec-%typedarray%.prototype.slice
17exportTypedArrayMethod('slice', function slice(start, end) {
18 var list = arraySlice(aTypedArray(this), start, end);
19 var C = typedArraySpeciesConstructor(this);
20 var index = 0;
21 var length = list.length;
22 var result = new C(length);
23 while (length > index) result[index] = list[index++];
24 return result;
25}, FORCED);