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
Which operator is used to determine the type of a variable in JavaScript?
A). typeof
B). instanceof
C). type
D). isType
What does it mean that JavaScript is dynamically typed?
A). Variables do not have types
B). Variables can change type
C). Variables must be declared with a type
D). Variables cannot change type
Given let a = '10'; let b = 20;, what is the result of a + b?
A). 30
B). 1020
C). 30
D). NaN
What is the type of the value returned by JSON.parse('null')?
A). null
B). string
C). object
D). undefined
What is the type of the value returned by parseFloat('3.14abc')?
A). number
B). string
C). NaN
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
Which of the following values is considered falsy in JavaScript?
A). 1
B). 0
C). 0
D). {}
What will typeof null return in JavaScript?
A). null
B). undefined
C). object
D). number
What is the result of typeof [] in JavaScript?
A). array
B). object
C). list
D). undefined
What is the result of the following code: let x = 5; x = 'hello'; console.log(typeof x);?
A). number
B). string
C). undefined
D). object