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

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

A). $.extend()

B). $.merge()

C). $.combine()

D). $.concat()

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

A). Encapsulation

B). Event binding

C). Animation

D). Ajax handling

What is the benefit of using the 'this.each()' method in a jQuery plugin?

A). Iterates through each element in the matched set

B). Selects a single element

C). Filters elements

D). Binds events

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

A). this

B). $(this)

C). element

D). $(element)

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

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()

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

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

A). Supports method chaining

B). Stops execution

C). Clears data

D). Prevents errors

How do you ensure a jQuery plugin supports method chaining?

A). Return this

B). Use $.fn.chain

C). Call the chain() method

D). Use return false