Which keyword is used to declare constants in JavaScript?

What does the 'this' keyword refer to in JavaScript?

A). The object on which a method is called

B). The global object

C). The parent function

D). The current file

Which keyword is used to determine the type of a variable or an expression?

A). typeof

B). type

C). typeOf

D). instanceof

Which keyword is used to declare variables in JavaScript?

A). var

B). let

C). const

D). variable

What is the purpose of the 'let' keyword in JavaScript?

A). To declare constants

B). To declare block-scoped variables

C). To declare functions

D). To perform logical operations

Which keyword is used to skip the current iteration in a loop?

A). continue

B). break

C). return

D). exit

What does the 'typeof' keyword return for a number?

A). number

B). string

C). object

D). undefined

Which keyword is used to remove a property from an object?

A). delete

B). remove

C). erase

D). discard

What does the 'return' keyword do in JavaScript?

A). Exits a loop or switch statement

B). Continues to the next iteration in a loop

C). Returns a value from a function

D). Skips the current iteration in a loop

What is the purpose of the 'if' keyword in JavaScript?

A). To perform conditional execution

B). To declare functions

C). To create loops

D). To skip iterations in a loop

Which keyword is used to create a new instance of an object?

A). new

B). instanceof

C). this

D). create