Which of the following Backbone.js model methods is used for determining the previous value of the changed attribute?

Which of the following options is NOT a correct feature of Backbone.js?

While creating routes manually using Backbone.js, how many parameters can be passed to the route function?

In relation to Grunt plugin QUint task configuration options, which of the following options is the default value of timeout option?

In relation to UglinyS task configuration options, which of the following Options is the default value of report option?

In relation to RequireJS configuration options. which of the following Options is used for allowing the conf‌iguration of exports. dependencies, and custom initialization for the Older scripts that do not use the function named define ()?

Backbone.sync is a _____ to synchronize your collections and models across the systems?

The architecture of Backbone.js contains the following modules?

Which of the following method is enables History API?

Underscore is primarily used for its utility __ and json2.js?

You can remove all listeners on a particular object by using?