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

Answer & Solution

Answer: Option A
Solution:
The self-invoking function (IIFE) in jQuery plugins is used for encapsulation, ensuring variables and methods do not conflict with other scripts.
Related Questions on Average

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

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()

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

A). DataTables

B). Bootstrap

C). PHPMyAdmin

D). MySQL

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

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

What is the primary purpose of jQuery plugins?

A). Extend jQuery's prototype object

B). Simplify HTML documents

C). Manage CSS styles

D). Enhance server-side scripting

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

A). $(selector).pluginName()

B). $(selector).usePlugin()

C). $(selector).applyPlugin()

D). $(selector).newPlugin()

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 a common use of jQuery plugins?

A). Enhancing user interfaces

B). Connecting to databases

C). Server-side scripting

D). File handling