Tutorial 8.5 One Time Binding Expressions

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******************************************INDEX.HTML*****************************************************
<!doctype html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <title>Example - example-expression-one-time-production</title>
 

  <script src="//code.angularjs.org/snapshot/angular.min.js"></script>
  <script src="script.js"></script>
 

 
</head>
<body ng-app="oneTimeBindingExampleApp">
  <div ng-controller="EventController">
  <button ng-click="clickMe($event)">Click Me</button>
  <p id="one-time-binding-example">One time binding: {{::name}}</p>
  <p id="normal-binding-example">Normal binding: {{name}}</p>
</div>
</body>
</html>
******************************************INDEX.HTML*****************************************************
********************************************script.js***************************************************
(function(angular) {
  'use strict';
angular.module('oneTimeBindingExampleApp', []).
  controller('EventController', ['$scope', function($scope) {
    var counter = 0;
    var names = ['Igor', 'Misko', 'Chirayu', 'Lucas'];
    /*
     * expose the event object to the scope
     */
    $scope.clickMe = function(clickEvent) {
      $scope.name = names[counter % names.length];
      counter++;
    };
  }]);
})(window.angular);
********************************************script.js***************************************************
******************************************Protractor.js*****************************************************
it('should freeze binding after its value has stabilized', function() {
  var oneTimeBinding = element(by.id('one-time-binding-example'));
  var normalBinding = element(by.id('normal-binding-example'));

  expect(oneTimeBinding.getText()).toEqual('One time binding:');
  expect(normalBinding.getText()).toEqual('Normal binding:');
  element(by.buttonText('Click Me')).click();

  expect(oneTimeBinding.getText()).toEqual('One time binding: Igor');
  expect(normalBinding.getText()).toEqual('Normal binding: Igor');
  element(by.buttonText('Click Me')).click();

  expect(oneTimeBinding.getText()).toEqual('One time binding: Igor');
  expect(normalBinding.getText()).toEqual('Normal binding: Misko');

  element(by.buttonText('Click Me')).click();
  element(by.buttonText('Click Me')).click();

  expect(oneTimeBinding.getText()).toEqual('One time binding: Igor');
  expect(normalBinding.getText()).toEqual('Normal binding: Lucas');
});
******************************************Protractor.js*****************************************************

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