es.typed-array.map.js

'use strict';
var ArrayBufferViewCore = require('../internals/array-buffer-view-core');
var $map = require('../internals/array-iteration').map;
var typedArraySpeciesConstructor = require('../internals/typed-array-species-constructor');

var aTypedArray = ArrayBufferViewCore.aTypedArray;
var exportTypedArrayMethod = ArrayBufferViewCore.exportTypedArrayMethod;

// `%TypedArray%.prototype.map` method
// https://tc39.es/ecma262/#sec-%typedarray%.prototype.map
exportTypedArrayMethod('map', function map(mapfn /* , thisArg */) {
  return $map(aTypedArray(this), mapfn, arguments.length > 1 ? arguments[1] : undefined, function (O, length) {
    return new (typedArraySpeciesConstructor(O))(length);
  });
});