JavaScript MCQ › Javascript Data Types MCQ › Question #4882
Single Choice Easy

QWhich of the following is not a valid way to create a new number in JavaScript?

ID: #4882 Javascript Data Types MCQ 180 views
Question Info
#4882Q ID
EasyDifficulty
Javascript Data Types MCQTopic
Start Quiz on This Topic
 Your Answer

Choose the Best Option

Click any option to instantly check if you're correct.

  • A var num = 10; ✔ ✖
  • B var num = Number(10); ✔ ✖
  • C var num = new Number(10); ✔ ✖
  • D var num = 10.5; ✔ ✖
Correct Answer

Explanation

While A, B, D, and E are all valid ways to create a new number in JavaScript, using the "new" keyword and the Number constructor function (as in C) is not recommended,
because it can cause confusion with the primitive number data type.
It is better to use either of the other options.

 Continue Practice
Previous Question Next Question
 Share

Share This Question

Challenge a friend or share with your study group.

 More from This Topic

Related MCQ Questions

What is the result of the following code? <pre class="prettymint"> var map = new Map(); map Which of the following is not a primitive data type in JavaScript? What does the following function do in JavaScript? <pre class="prettymint"> function toUpper What is the result of the following code? <pre class="prettyprint"> var num = 10; num++; c What is the result of the following code? <pre class="prettymint"> var obj = {}; console.lo What does the following function do in JavaScript? <pre class="prettymint"> function getArea What is the result of the following code? <pre class="prettymint">var set = new Set(); set.a What is the result of the following code? <pre class="prettymint">var num = 10; console.log( What is the result of the following code? <pre class="prettymint">var str = "Hello" What is the result of the following code? <pre class="prettymint">var num1 = 10; var num2 =