Which keyword is used to create an instance of an array in JavaScript?
A). new
B). instanceof
C). this
D). create
Which keyword is used to declare variables in JavaScript?
A). var
B). let
C). const
D). variable
Which keyword is used to remove a property from an object?
A). delete
B). remove
C). erase
D). discard
Which keyword is used to create a loop with multiple cases in JavaScript?
A). switch
B). for
C). while
D). if
What is the purpose of the 'instanceof' keyword in JavaScript?
A). To determine if an object is an instance of a particular class or constructor
B). To check if an object is empty
C). To check if a variable is undefined
D). To compare two objects
Which keyword is used to declare constants in JavaScript?
A). const
B). let
C). var
D). constant
What does the 'break' 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 '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