chore(es7): async/await example

Author: sjelin

exampleTypescript/asyncAwait/.gitignore

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+*.js

exampleTypescript/asyncAwait/README.md

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+`async`/`await` in Protractor
+=============================
+
+`async`/`await` is an a feature that may or may not be added to javascript in
+the future.  It is currently accessible via typescript if you compile using
+`tsc -t ES2015 <files>`.  Protractor supports returning a promise at the end of
+an `it()` block, so it indirectly supports `async`/`await` (so long as your
+programming environment supports it).

exampleTypescript/asyncAwait/conf.ts

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+// Because this file imports from  protractor, you'll need to have it as a
+// project dependency.
+//
+// To run this example, run 'npm run tsc -t ES2015' to transpile the typescript
+// to javascript. run with 'protractor conf.js'
+import {Config} from 'protractor';
+
+export let config: Config  = {
+  framework: 'jasmine',
+  capabilities: {
+    browserName: 'chrome'
+  },
+  specs: [ 'spec.js' ],
+  seleniumAddress: 'http://localhost:4444/wd/hub'
+};

exampleTypescript/asyncAwait/spec.ts

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+// Same process for importing and compiling at ../spec.ts, except you need to
+// pass the `-t ES2015` flag to `tsc`.
+import {browser, element, by, By, $, $$, ExpectedConditions} from 'protractor/globals';
+
+describe('async function', function() {
+  it('should wait on async function in conditional', async function() : Promise<any> {
+    browser.get('http://www.angularjs.org');
+    let todoList = element.all(by.repeater('todo in todoList.todos'));
+    if ((await todoList.count()) > 1) {
+      expect(todoList.get(1).getText()).toEqual('build an angular app');
+    }
+  });
+});