![]() It allows the view to automatically update itself when the model or collection changes. What is the purpose of the listenTo() function in Backbone.js?ī) To update the view when the model changesĪnswer: b) To update the view when the model changesĮxplanation: The listenTo() function in Backbone.js is used to bind a view to a model or collection. Which of the following is a method for adding a model to a collection in Backbone.js?Įxplanation: The add() method is used to add a model to a collection in Backbone.js. ![]() What is the purpose of the initialize() function in a Backbone.js view?ĭ) To perform any necessary setup or initializationĪnswer: d) To perform any necessary setup or initializationĮxplanation: The initialize() function in a Backbone.js view is used to perform any necessary setup or initialization. ![]() What is the role of a Controller in Backbone.js?Įxplanation: A controller in Backbone.js handles user input and coordinates interactions between models and views. It is responsible for mapping URLs to the appropriate views and handling user navigation. Which of the following is a built-in event in Backbone.js?Įxplanation: The change event is a built-in event in Backbone.js that is triggered whenever a model or collection is changed.Īnswer: d) Manages application routes and URLsĮxplanation: A router in Backbone.js manages application routes and URLs. It provides a way to manage and manipulate multiple instances of the same model type. It represents a portion of the web page and is updated when the underlying data changes.Įxplanation: A collection in Backbone.js is a group of models. It is responsible for managing the data and any changes made to it.Įxplanation: A view in Backbone.js is responsible for rendering data to the user. What is the role of a Model in Backbone.js?ī) Represents the data and the business logicĪnswer: b) Represents the data and the business logicĮxplanation: A model in Backbone.js represents the data and business logic of the application. It provides a set of tools for organizing code and simplifying the development process. Explanation: Backbone.js is a lightweight client-side JavaScript framework used for building web applications.
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