Answer & Solution
Answer: Option D
Solution:
The value undefined is of type undefined in JavaScript.
Q
What is the data type of the value undefined in JavaScript?
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A). String
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A). Symbol
B). Object
C). Array
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A). Number
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A). Infinity
B). 0
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A). Null
B). Undefined
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D). Number
What is the outcome of typeof [1, 2, 3] in JavaScript?
A). String
B). Number
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Which of the following is not a valid data type in JavaScript?
A). Array
B). Symbol
C). Map
D). Tuple
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A). Number
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C). Boolean
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A). String
B). Boolean
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D). Null