Bump to v4.0.0.

internal/cloneTypedArray.js

@@ -0,0 +1,18 @@
+import cloneBuffer from './cloneBuffer';
+
+/**
+ * Creates a clone of `typedArray`.
+ *
+ * @private
+ * @param {Object} typedArray The typed array to clone.
+ * @param {boolean} [isDeep] Specify a deep clone.
+ * @returns {Object} Returns the cloned typed array.
+ */
+function cloneTypedArray(typedArray, isDeep) {
+  var buffer = typedArray.buffer,
+      Ctor = typedArray.constructor;
+
+  return new Ctor(isDeep ? cloneBuffer(buffer) : buffer, typedArray.byteOffset, typedArray.length);
+}
+
+export default cloneTypedArray;