Merge pull request #9912 from slavik57/master

Add promise.prototype.finally definition file

promise.prototype.finally/promise.prototype.finally-tests.ts

@@ -0,0 +1,12 @@
+/// <reference path="./promise.prototype.finally.d.ts"/>
+
+var promise = new Promise<Boolean>((resolve, reject) => {
+	resolve(true);
+});
+
+promise.finally(() => {});
+promise.then(() => {}, () => {}).finally(() => {});
+promise.catch(() => {}).finally(() => {});
+
+var allPromise = Promise.all([promise]);
+allPromise.finally(() => {});

promise.prototype.finally/promise.prototype.finally.d.ts

@@ -0,0 +1,8 @@
+// Type definitions for promise.prototype.finally v1.0.1
+// Project: https://github.com/matthew-andrews/Promise.prototype.finally
+// Definitions by: Slava Shpitalny <https://github.com/slavik57>
+// Definitions: https://github.com/DefinitelyTyped/DefinitelyTyped
+
+declare interface Promise<T> {
+    finally<U>(onFinally?: () => U | Promise<U>): Promise<U>;
+}