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25 lines
967 B
25 lines
967 B
'use strict'; |
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var ArrayBufferViewCore = require('../internals/array-buffer-view-core'); |
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var typedArraySpeciesConstructor = require('../internals/typed-array-species-constructor'); |
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var fails = require('../internals/fails'); |
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var arraySlice = require('../internals/array-slice'); |
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var aTypedArray = ArrayBufferViewCore.aTypedArray; |
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var exportTypedArrayMethod = ArrayBufferViewCore.exportTypedArrayMethod; |
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var FORCED = fails(function () { |
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// eslint-disable-next-line es/no-typed-arrays -- required for testing |
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new Int8Array(1).slice(); |
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}); |
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// `%TypedArray%.prototype.slice` method |
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// https://tc39.es/ecma262/#sec-%typedarray%.prototype.slice |
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exportTypedArrayMethod('slice', function slice(start, end) { |
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var list = arraySlice(aTypedArray(this), start, end); |
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var C = typedArraySpeciesConstructor(this); |
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var index = 0; |
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var length = list.length; |
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var result = new C(length); |
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while (length > index) result[index] = list[index++]; |
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return result; |
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}, FORCED);
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