docs: edit and add example for Template Expression Operators section of Template Syntax (#28087)

PR Close #28087

aio/content/examples/template-expression-operators/e2e/src/app.e2e-spec.ts

@@ -0,0 +1,31 @@
+import { browser, element, by } from 'protractor';
+import { logging } from 'selenium-webdriver';
+
+describe('Template Expression Operators', function () {
+
+  beforeAll(function () {
+    browser.get('');
+  });
+
+  it('should have title Inputs and Outputs', function () {
+    let title = element.all(by.css('h1')).get(0);
+    expect(title.getText()).toEqual('Template Expression Operators');
+  });
+
+  it('should display json data', function () {
+    let jsonDate = element.all(by.css('p')).get(4);
+    expect(jsonDate.getText()).toContain('1980');
+  });
+
+  it('should display $98', function () {
+    let jsonDate = element.all(by.css('p')).get(5);
+    expect(jsonDate.getText()).toContain('$98.00');
+  });
+
+  it('should display Telephone', function () {
+    let jsonDate = element.all(by.css('p')).get(6);
+    expect(jsonDate.getText()).toContain('Telephone');
+  });
+
+
+});