Answer & Solution
Answer: Option A
Solution:
typeof NaN returns 'number'.
Q
What is the result of typeof NaN in JavaScript?
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What does typeof new Date() evaluate to in JavaScript?
A). date
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C). string
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A). symbol
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What will be the output of [] instanceof Array in JavaScript?
A). 1
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A). 1
B). 0
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A). 123
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What does typeof window.evaluate evaluate to in JavaScript?
A). function
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How does the instanceof operator work in JavaScript?
A). Checks if an object has a specific prototype in its prototype chain.
B). Checks if two variables are of the same type.
C). Checks if a variable is null.
D). Checks if a variable is undefined.
What will be the output of typeof null in JavaScript?
A). object
B). null
C). undefined
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How does JavaScript evaluate typeof /^regex$/ in JavaScript?
A). regexp
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What does the typeof operator return for an undefined variable?
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