Q
What is the result of the expression '10' + 5 in JavaScript?

Answer & Solution

Answer: Option A
Solution:
In JavaScript, when a string is concatenated with a number using the + operator, the number is converted to a string and concatenated with the string. Therefore, the result of the expression '10' + 5 is '105'. Option A is correct for the result of the expression.
Related Questions on Average

What is the value of the expression true && false in JavaScript?

A). 1

B). 0

C). Error

D). null

Which of the following represents a numeric value in JavaScript?

A). 'Hello'

B). 1

C). 42

D). [1, 2, 3]

What data type does the value true represent in JavaScript?

A). Number

B). String

C). Boolean

D). Object

What is the value of the expression (true

A).

B). false) && (true && false) in JavaScript?

C). 1

D). 0

Which of the following represents an undefined value in JavaScript?

A). 'undefined'

B). null

C). undefined

D). 'null'

What does the expression (5 > 3) evaluate to in JavaScript?

A). 1

B). 0

C). undefined

D). null

What is the value of the expression !(5 > 3) in JavaScript?

A). 1

B). 0

C). Error

D). null

What is the value of the expression (10 > 5)

A).

B). (3 < 2) in JavaScript?

C). 1

D). 0

What is the result of the expression 10 + '5' in JavaScript?

A). 105

B). '15'

C). 15

D). '105'

What is the value of the expression '20' - 10 in JavaScript?

A). 10

B). '10'

C). '2010'

D). Error