Q
Which symbol is used to denote a comment in JavaScript?

Answer & Solution

Answer: Option A
Solution:
In JavaScript, double forward slashes // are used to start a single-line comment. Anything after // on the same line is treated as a comment and is not executed by the JavaScript engine.
Related Questions on Average

Which of the following is a valid JavaScript data type for representing text?

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Which data type is used to represent the absence of a value in JavaScript?

A). Null

B). Undefined

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What will be the output of typeof {} in JavaScript?

A). Object

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A). String

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What is the data type of the value null in JavaScript?

A). Object

B). String

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Which data type is used to represent a unique identifier in JavaScript?

A). Identifier

B). Key

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Which of the following is not a valid JavaScript data type?

A). Integer

B). Object

C). Symbol

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What will the data type of the variable name be if it is assigned the value 'John Doe'?

A). Number

B). String

C). Boolean

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Which of the following data types is used to represent a function in JavaScript?

A). Func

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What data type is used to represent a collection of key-value pairs in JavaScript?

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B). Array

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