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936 BJavaScriptView Raw
1'use strict';
2var ArrayBufferViewCore = require('../internals/array-buffer-view-core');
3var $filter = require('../internals/array-iteration').filter;
4var speciesConstructor = require('../internals/species-constructor');
5
6var aTypedArray = ArrayBufferViewCore.aTypedArray;
7var aTypedArrayConstructor = ArrayBufferViewCore.aTypedArrayConstructor;
8var exportTypedArrayMethod = ArrayBufferViewCore.exportTypedArrayMethod;
9
10// `%TypedArray%.prototype.filter` method
11// https://tc39.es/ecma262/#sec-%typedarray%.prototype.filter
12exportTypedArrayMethod('filter', function filter(callbackfn /* , thisArg */) {
13 var list = $filter(aTypedArray(this), callbackfn, arguments.length > 1 ? arguments[1] : undefined);
14 var C = speciesConstructor(this, this.constructor);
15 var index = 0;
16 var length = list.length;
17 var result = new (aTypedArrayConstructor(C))(length);
18 while (length > index) result[index] = list[index++];
19 return result;
20});