While using JavaScript, which of the following string functions is used for extracting a subString from the string that begins at the start position through the specif‌ied number of characters?

In relation to running QUnit without a browser. which of the following options is the correct command that is entered to the command line for obtaining the PhantomJS Runner plug-in for QUnit?

Which options is the correct OUnit callback that runs after each assertion and provides the result of the test case (either error or log) along with the message?

In relation to Jasmine-jOuery matchers. which of the following options is the correct syntax of the matcher that is used for checking if an event was triggered on the element?

In relation to RequireJS configuration options, which of the following options is used for specifying an array of dependencies to load immediately after processing of the configuration of RequireJS?

In relation to the attribute changes in Backbonejs models, which of the following Options is used for providing a global change handler that is used for responding to any attribute changing in the model?

Which of the following are Backbone Building Blocks?

Which code is used when model or collection is synced successfully with server?

How do you we get only the first 20 items in a backbone collection?

Which of the following route parameter's statement is correct of Router? (choose all that apply) router.route(fun, name, [callback])

Which of the following code will you use if Defining a root route?