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Angular JS MCQ

Angular JS Quick Quiz

Question 1 of 10
  • if a conditional expression for an ng-if directive on a div element evaluates to false, then which of the following options correctly describes the result of this event?

    Answer & Explanation

    Correct Answer: The div tag will be entirely removed from the DOM.

    Note: This Question is unanswered, help us to find answer for this one

  • if the HTML template display causes a f‌lickering effect in an AngularJS application, which directive can be used to avoid that effect?

    Answer & Explanation

    Correct Answer: ngCloak

    Note: This Question is unanswered, help us to find answer for this one

  • How does the emulated view encapsulation mode handle CSS for a component?

    Answer & Explanation

    Correct Answer: It creates unique attributes for DOM elements and scopes the CSS selectors you write to those attribute ids.

    Note: This Question is unanswered, help us to find answer for this one

  • What is an alternative way to write this markup to bind the value of the class field userName to the h1 element title property?

    Current user is {{ userName }}

    Answer & Explanation

    Correct Answer: title="{{ userName }}"

    Note: This Question is unanswered, help us to find answer for this one

  • The ngChange expression in AngularJS is evaluated:

    Answer & Explanation

    Correct Answer: Only when a modif‌ication in the input value causes a new value to be committed to the model.

    Note: This Question is unanswered, help us to find answer for this one

  • Which of the following methods can be used to create a service?

    Answer & Explanation

    Correct Answer: Both factory and service

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  • What is the purpose of the valueChanges method on a FormControl?

    Answer & Explanation

    Correct Answer: It is an observable that emits every time the value of the control changes, so you can react to new values and make logic decisions at that time.

    Note: This Question is unanswered, help us to find answer for this one

  • What is the RouterModule.forRoot method used for?

    Answer & Explanation

    Correct Answer: Registering route definitions at the root application level.

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  • What are Angular lifecycle hooks?

    Answer & Explanation

    Correct Answer: Reserved named methods for components and directives that Angular will call during set times in its execution, and can be used to tap into those lifecycle moments

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  • Which service does the HTML $compile service use for the purpose of data binding?

    Answer & Explanation

    Correct Answer: $interpolate

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  • Angular JS Quick Quiz

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