--- /dev/null
+'use strict';
+var ArrayBufferViewCore = require('../internals/array-buffer-view-core');
+var toLength = require('../internals/to-length');
+var toAbsoluteIndex = require('../internals/to-absolute-index');
+var speciesConstructor = require('../internals/species-constructor');
+
+var aTypedArray = ArrayBufferViewCore.aTypedArray;
+var exportTypedArrayMethod = ArrayBufferViewCore.exportTypedArrayMethod;
+
+// `%TypedArray%.prototype.subarray` method
+// https://tc39.es/ecma262/#sec-%typedarray%.prototype.subarray
+exportTypedArrayMethod('subarray', function subarray(begin, end) {
+ var O = aTypedArray(this);
+ var length = O.length;
+ var beginIndex = toAbsoluteIndex(begin, length);
+ return new (speciesConstructor(O, O.constructor))(
+ O.buffer,
+ O.byteOffset + beginIndex * O.BYTES_PER_ELEMENT,
+ toLength((end === undefined ? length : toAbsoluteIndex(end, length)) - beginIndex)
+ );
+});