In a regular expression, what does \d represent?

• A) Any digit (0–9)
• B) A whitespace character
• C) Any letter
• D) A special symbol

In JQuery, innerHeight() method returns:

• A) height of an element excluding padding
• B) height of an element excluding border
• C) height of an element including padding
• D) height of an element including border

The children() method selects:

• A) Direct child elements only
• B) Parent elements
• C) Sibling elements
• D) All elements in DOM

Which part of a variable is hoisted in JavaScript?

• A) Declaration (variable name)
• B) Assignment (value storage)
• C) Initialization (assigning value)
• D) Expression

In DOM tree, an ancestor can be ___________.

• A) Child, grand-child, great grand-child and so on.
• B) All of the given options
• C) Parent, grand parent, great grand-parent and so on.
• D) Siblings

What does points.sort(function(a,b){return a-b}) do?

• A) Sorts the array randomly
• B) Sorts the array alphabetically
• C) Sorts the array in ascending numeric order
• D) Sorts the array in descending order

______________________ is used to Insert content at the beginning of the selected elements.

• A) After()
• B) Prepend()
• C) Before()
• D) Append()

______________________ is used to Insert content at the end of the selected elements.

• A) Prepend()
• B) Before()
• C) After()
• D) Append()

GET request sends data via:

• A) Header only
• B) Cookie
• C) URL
• D) Body

What is the best way to create an object in JavaScript?

• A) new Object()
• B) {} (object literal)
• C) create()
• D) Object()

How can you determine if a variable is an array in JavaScript?

• A) Inspecting the variable's constructor
• B) Using the typeof operator
• C) Checking if the variable's type is "array"
• D) Using the isArray() function

Which of the following is syntax of creating XMLHttpRequest?

• A) new AJAX()
• B) new HTTPRequest()
• C) createRequest()
• D) new XMLHttpRequest()

Which loop evaluates the condition after executing the code block?

• A) for loop
• B) do/while loop
• C) if statement
• D) while loop

The unary + operator is used to:

• A) Convert an object into an array
• B) Convert a number into a string
• C) Convert a string into a number
• D) Convert a boolean into a string

undefined means:

• A) String value
• B) Value not assigned yet
• C) Null value
• D) Number value

What is the function of document ready event?

• A) None of the given options
• B) To prevent an event from performing its default action
• C) To prevent any jQuery code from running after the document has finished loading
• D) To prevent any jQuery code from running before the document is finished loading

Which key is commonly used to open Developer Tools in most browsers?

• A) F10
• B) F12
• C) F5
• D) F1

HTML validation is performed by:

• A) Server only
• B) Browser automatically
• C) JavaScript only
• D) Database

Which of the following is a fast, small, and feature-rich JavaScript library?

• A) SQuery
• B) None of the given options
• C) FQuery
• D) jQuery

Which attribute triggers validation on form submit?

• A) onclick
• B) onsubmit
• C) onload
• D) onchange