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

What is a common use of jQuery plugins?

A). Enhancing user interfaces

B). Connecting to databases

C). Server-side scripting

D). File handling

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

A). this

B). $(this)

C). element

D). $(element)

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()

How can you hide an element using a jQuery plugin?

A). this.hide()

B). this.visible(false)

C). this.remove()

D). this.display('none')

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

Which jQuery method is used to apply a plugin to selected elements?

A). $(selector).pluginName()

B). $(selector).usePlugin()

C). $(selector).applyPlugin()

D). $(selector).newPlugin()

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)

Which of the following is an example of a jQuery plugin?

A). DataTables

B). Bootstrap

C). PHPMyAdmin

D). MySQL

What does the $.each() method do in jQuery?

A). Iterates over elements

B). Filters elements

C). Binds events

D). Animates elements

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