AngularJS Forms
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Questions and Answers

What is the purpose of the $watch function in the provided code?

  • To create a new Angular module
  • To broadcast an event down the scope hierarchy
  • To update the `newMessage` and `oldMessage` properties whenever the `message` property changes (correct)
  • To listen for an event broadcasted from a parent scope
  • What does the $broadcast function do in Angular?

  • It creates a new scope
  • It updates the value of a property on the current scope
  • It propagates events up the scope hierarchy
  • It propagates events down the scope hierarchy (correct)
  • In the provided code, which controller(s) will receive the event broadcasted by the ParentController?

  • Only the `ChildController`
  • Only the `ChildsChildController`
  • Both the `ChildController` and `ChildsChildController` (correct)
  • None of the controllers
  • What is the purpose of the $on function in the provided code?

    <p>To listen for an event broadcasted from a parent scope</p> Signup and view all the answers

    What is the syntax for using the $broadcast function in Angular?

    <p><code>$broadcast(name, args)</code></p> Signup and view all the answers

    In the provided code, what is the value of $scope.message in the ChildsChildController after the handleClick function is called with the argument 'Hello'?

    <p><code>'In Childs Child Controller: Hello'</code></p> Signup and view all the answers

    What is the purpose of the angular.module function in the provided code?

    <p>To create a new Angular module</p> Signup and view all the answers

    What is the purpose of the var app = angular.module('app', []); line in the provided code?

    <p>To create a new Angular module named 'app'</p> Signup and view all the answers

    What is the purpose of the controller function in the provided code?

    <p>To create a new Angular controller</p> Signup and view all the answers

    In the provided code, what is the value of {{message}} in the ParentController after the handleClick function is called with the argument 'Hello'?

    <p>The value of <code>{{message}}</code> in the <code>ParentController</code> does not change</p> Signup and view all the answers

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