Answer & Solution
Answer: Option A
Solution:
JavaScript converts the number 3 to the string '3' and concatenates it with '5', resulting in '35'.
Q
Which type conversion happens automatically in the expression 3 + '5'?
Related Questions on Average
What does the isNaN function do?
A). Checks if a value is not a number
B). Converts a value to a number
C). Checks if a value is a number
D). Converts a value to NaN
Given let a = '10'; let b = 20;, what is the result of a + b?
A). 30
B). 1020
C). 30
D). NaN
What will be the result of the following code: let z = '123'; z = Number(z); console.log(typeof z);?
A). string
B). number
C). undefined
D). boolean
Which operator is used to determine the type of a variable in JavaScript?
A). typeof
B). instanceof
C). type
D). isType
What is the result of typeof [] in JavaScript?
A). array
B). object
C). list
D). undefined
What will typeof NaN return in JavaScript?
A). number
B). NaN
C). undefined
D). object
Which of the following values is considered falsy in JavaScript?
A). 1
B). 0
C). 0
D). {}
What happens when you add a number and a string in JavaScript?
A). An error is thrown
B). The number is converted to a string
C). The string is converted to a number
D). Both are converted to boolean
What is the type of the value returned by JSON.parse('null')?
A). null
B). string
C). object
D). undefined
In JavaScript, what will be the type of a variable x after x = 5 + true;?
A). number
B). string
C). boolean
D). undefined