What is the value of the expression 'Hello' + 'World' in JavaScript?
A). 'HelloWorld'
B). 'Hello World'
C). 'Hello+World'
D). Error
What is the value of the expression !(5 > 3) in JavaScript?
A). 1
B). 0
C). Error
D). null
What is the value of the expression '20' - 10 in JavaScript?
A). 10
B). '10'
C). '2010'
D). Error
Which of the following represents an undefined value in JavaScript?
A). 'undefined'
B). null
C). undefined
D). 'null'
Which of the following represents a string value in JavaScript?
A). {name: 'John', age: 30}
B). 42
C). 'Hello, World!'
D). 1
Which of the following represents a null value in JavaScript?
A). undefined
B). 'null'
C). null
D). 0
What is the value of the expression (10 * 3) / 2 in JavaScript?
A). 15
B). 30
C). 20
D). 25
Which of the following represents a Boolean value in JavaScript?
A). 'true'
B). '42'
C). 'null'
D). 'undefined'
What is the value of the expression (10 > 5)
A).
B). (3 < 2) in JavaScript?
C). 1
D). 0
What is the value of the expression (true
A).
B). false) && (true && false) in JavaScript?
C). 1
D). 0