Which jQuery method is used to merge two or more objects?

How can you extend an existing jQuery plugin with new methods?

A). $.fn.pluginName.newMethod = function()

B). $.pluginName.extend()

C). $.fn.extend(pluginName, newMethod)

D). $.extend(pluginName, newMethod)

What is the purpose of using the $.fn object in jQuery plugins?

A). To access jQuery prototype

B). To access the DOM directly

C). To handle events

D). To create HTML elements

How can you make a jQuery plugin reusable across different projects?

A). Encapsulate in a function

B). Hard-code values

C). Avoid comments

D). Use global variables

How can you pass options to a jQuery plugin?

A). As an object

B). As a string

C). As an array

D). As a number

How can you ensure a jQuery plugin does not conflict with other libraries?

A). Use noConflict()

B). Use unique variable names

C). Avoid global variables

D). Use namespaces

What does 'return this' achieve in a jQuery plugin?

A). Supports method chaining

B). Stops execution

C). Clears data

D). Prevents errors

What does the $.extend() method do in a jQuery plugin?

A). Merge objects

B). Create animations

C). Handle events

D). Perform Ajax requests

In a jQuery plugin, how do you select the current element?

A). this

B). $(this)

C). element

D). $(element)

What is the purpose of the self-invoking function in jQuery plugins?

A). Encapsulation

B). Event binding

C). Animation

D). Ajax handling

Which method is used to extend jQuery's functionality by adding a plugin?

A). $.fn.extend()

B). $.fn.add()

C). $.fn.plugin()

D). $.fn.new()