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
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
Which keyword is used to declare constants in JavaScript?
A). const
B). let
C). var
D). constant
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 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
Which keyword is used to create a new instance of an object?
A). new
B). instanceof
C). this
D). create
What does the 'typeof' keyword return for a number?
A). number
B). string
C). object
D). undefined
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 create a loop with multiple cases in JavaScript?
A). switch
B). for
C). while
D). if