Answer & Solution
Answer: Option A
Solution:
Positive infinity is represented by the keyword Infinity in JavaScript.
Q
Which data type represents positive infinity in JavaScript?
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What is the outcome of typeof [1, 2, 3] in JavaScript?
A). String
B). Number
C). Array
D). Object
Which data type represents an intentional absence of any value in JavaScript?
A). Null
B). Undefined
C). String
D). Number
Which of these is a complex or reference data type in JavaScript?
A). Number
B). Boolean
C). Object
D). String
What will let x = '10'; let y = x - 5; console.log(y); output in JavaScript?
A). '5'
B). 5
C). '10'
D). 10
What is the data type of the value true in JavaScript?
A). Number
B). String
C). Boolean
D). Undefined
Which data type represents a block of reusable code in JavaScript?
A). String
B). Object
C). Function
D). Number
What will the following code snippet output: let a = 10; a += '5'; console.log(a); in JavaScript?
A). '105'
B). 105
C). 15
D). '15'
What is the data type of the value undefined in JavaScript?
A). Number
B). Boolean
C). String
D). Undefined
What is the result of 0 / 0 in JavaScript?
A). Infinity
B). 0
C). NaN
D). 1
What will be the result of typeof 'hello' in JavaScript?
A). String
B). Number
C). Undefined
D). Function