Answer & Solution
Answer: Option A
Solution:
typeof null returns 'object', which is a historical bug in JavaScript.
Q
What will be the output of typeof null in JavaScript?
Related Questions on Average
What is the result of Boolean('false') in JavaScript?
A). 1
B). 0
C). NaN
D). null
How does the typeof operator handle arrays in JavaScript?
A). array
B). object
C). undefined
D). null
What is the result of typeof NaN in JavaScript?
A). number
B). NaN
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A). math
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C). number
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A). 1
B). 0
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What is the output of typeof Symbol('id') in JavaScript?
A). symbol
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What does Number('123') return in JavaScript?
A). 123
B). '123'
C). NaN
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What does typeof true evaluate to in JavaScript?
A). boolean
B). number
C). string
D). undefined
How does JavaScript evaluate typeof /^regex$/ in JavaScript?
A). regexp
B). object
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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.