What will be the result of typeof 'hello' in JavaScript?
A). String
B). Number
C). Undefined
D). Function
What is the outcome of typeof [1, 2, 3] in JavaScript?
A). String
B). Number
C). Array
D). Object
Which data type represents unique and immutable values in JavaScript introduced in ES6?
A). Symbol
B). Object
C). Array
D). Function
Which of these is a complex or reference data type in JavaScript?
A). Number
B). Boolean
C). Object
D). String
What is the data type of the value 'null' (with quotes) in JavaScript?
A). String
B). Number
C). Null
D). Undefined
What is the data type of the value true in JavaScript?
A). Number
B). String
C). Boolean
D). Undefined
Which of the following is not a valid data type in JavaScript?
A). Array
B). Symbol
C). Map
D). Tuple
Which data type represents an intentional absence of any value in JavaScript?
A). Null
B). Undefined
C). String
D). Number
What is the outcome of typeof undefined in JavaScript?
A). String
B). Undefined
C). Null
D). Number
Which data type represents positive infinity in JavaScript?
A). Infinity
B). Number
C). NaN
D). Null