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
What does 'return this' achieve in a jQuery plugin?
A). Supports method chaining
B). Stops execution
C). Clears data
D). Prevents errors
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 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
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 of the following is an example of a jQuery plugin?
A). DataTables
B). Bootstrap
C). PHPMyAdmin
D). MySQL
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()
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()