--- /dev/null
+'use strict';
+var getBuiltIn = require('../internals/get-built-in');
+var aConstructor = require('../internals/a-constructor');
+var arrayFromAsync = require('../internals/array-from-async');
+var TYPED_ARRAYS_CONSTRUCTORS_REQUIRES_WRAPPERS = require('../internals/typed-array-constructors-require-wrappers');
+var ArrayBufferViewCore = require('../internals/array-buffer-view-core');
+var arrayFromConstructorAndList = require('../internals/array-from-constructor-and-list');
+
+var aTypedArrayConstructor = ArrayBufferViewCore.aTypedArrayConstructor;
+var exportTypedArrayStaticMethod = ArrayBufferViewCore.exportTypedArrayStaticMethod;
+
+// `%TypedArray%.fromAsync` method
+// https://github.com/tc39/proposal-array-from-async
+exportTypedArrayStaticMethod('fromAsync', function fromAsync(asyncItems /* , mapfn = undefined, thisArg = undefined */) {
+ var C = this;
+ var argumentsLength = arguments.length;
+ var mapfn = argumentsLength > 1 ? arguments[1] : undefined;
+ var thisArg = argumentsLength > 2 ? arguments[2] : undefined;
+ return new (getBuiltIn('Promise'))(function (resolve) {
+ aConstructor(C);
+ resolve(arrayFromAsync(asyncItems, mapfn, thisArg));
+ }).then(function (list) {
+ return arrayFromConstructorAndList(aTypedArrayConstructor(C), list);
+ });
+}, TYPED_ARRAYS_CONSTRUCTORS_REQUIRES_WRAPPERS);