JavaScript MCQ › Javascript Data Types MCQ › Question #4884
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QWhat is the result of the following code? 
var num = 10;
num = "Hello";
console.log(typeof num);

ID: #4884 Javascript Data Types MCQ 162 views
Question Info
#4884Q ID
EasyDifficulty
Javascript Data Types MCQTopic
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  • A number ✔ ✖
  • B string ✔ ✖
  • C boolean ✔ ✖
  • D undefined ✔ ✖
Correct Answer: Option B

Explanation

In JavaScript, variables are dynamically-typed, which means that their type can change at runtime.
In this case, the variable num is initially assigned the value 10, which is a number.
However, on the second line, num is assigned the value "Hello", which is a string.
Therefore, the typeof operator will return "string" when it is called on num.

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