Q
What happens when you add two numbers using the + operator in JavaScript?

Answer & Solution

Answer: Option C
Solution:
The + operator performs addition when used with numbers in JavaScript.
Related Questions on Average

Which of the following is a valid way to represent the value null in JavaScript?

A). undefined

B). NULL

C). null

D). None of the above

Which of the following is a valid JavaScript symbol?

A). symbol

B). &symbol

C). #symbol

D). Symbol('description')

Which symbol is used to represent a boolean value in JavaScript?

A). #

B). $

C). !

D). true/false

Which primitive value represents absence of value or no value assigned?

A). undefined

B). null

C). 0

D). 'undefined'

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

A). String

B). Object

C). Undefined

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Which of the following statements is true about JavaScript's null value?

A). It represents an empty string

B). It represents a non-existent value

C). It represents a boolean value

D). It represents a number

What is the result of the expression true == 1 in JavaScript?

A). true

B). false

C). Error

D). 1

What is the default value of a variable in JavaScript if it is not initialized?

A). null

B). undefined

C). 0

D). 'undefined'

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

A). Number

B). String

C). Object

D). Undefined

What is the result of the expression 5 + '5' in JavaScript?

A). 10

B). '55'

C). '10'

D). Error