Which of the following represents a numeric value in JavaScript?
A). 'Hello'
B). 1
C). 42
D). [1, 2, 3]
Which of the following represents an array in JavaScript?
A). {name: 'John', age: 30}
B). 'Hello'
C). [1, 2, 3]
D). 1
Which of the following represents an object in JavaScript?
A). [1, 2, 3]
B). 42
C). {name: 'Alice', age: 30}
D). 1
What is the value of the expression 'Hello' + 'World' in JavaScript?
A). 'HelloWorld'
B). 'Hello World'
C). 'Hello+World'
D). Error
What is the result of the expression '10' + 5 in JavaScript?
A). '105'
B). 15
C). '15'
D). Error
Which of the following represents an undefined value in JavaScript?
A). 'undefined'
B). null
C). undefined
D). 'null'
What data type does the value true represent in JavaScript?
A). Number
B). String
C). Boolean
D). Object
What is the value of the expression (10 > 5)
A).
B). (3 < 2) in JavaScript?
C). 1
D). 0
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 * 3) / 2 in JavaScript?
A). 15
B). 30
C). 20
D). 25