Answer & Solution
Answer: Option A
Solution:
Symbols are unique and immutable values introduced in ES6.
Q
Which data type represents unique and immutable values in JavaScript introduced in ES6?
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Which of these is a complex or reference data type in JavaScript?
A). Number
B). Boolean
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D). String
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A). String
B). Number
C). Undefined
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A). Infinity
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A). Object
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B). String
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What will let x = '10'; let y = x - 5; console.log(y); output in JavaScript?
A). '5'
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C). '10'
D). 10
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A). Object
B). Array
C). Function
D). Boolean
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A). String
B). Undefined
C). Null
D). Number
What is the outcome of typeof [1, 2, 3] in JavaScript?
A). String
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