Which is not a JavaScript data type?

Table of Contents

• Introduction
  • JavaScript Data Types
• Which is NOT a JavaScript Data Type?
• Conclusion
  • Which is NOT a JavaScript Data Type?
  • Valid JavaScript Data Types:

Introduction

JavaScript has seven primitive data types and one non-primitive data type (Object). However, some terms may seem like data types but are not.

JavaScript Data Types

Type	Example
Number	let num = 10;
String	let text = "Hello";
Boolean	let isTrue = true;
Undefined	let x; // undefined
Null	let y = null;
BigInt	let big = 9007199254740991n;
Symbol	let sym = Symbol("id");
Object (non-primitive)	let obj = { name: "Alice" };

Which is NOT a JavaScript Data Type?

Here are some options that are not valid JavaScript data types:

1. Float – JavaScript does not have a separate "float" type. All numbers, whether integers or decimals, are categorized under Number.
   Example:

2. Double – JavaScript does not have a "double" precision type like Java or C++. All floating-point numbers are stored as 64-bit floating-point numbers.
3. Character (char) – JavaScript does not have a char type like C or Java. A single character is stored as a String.
   Example:

4. Void – JavaScript does not have a void data type. However, void is a keyword used to return undefined.
   Example:

Conclusion

Which is NOT a JavaScript Data Type?

• Float
• Double
• Char
• Void

Valid JavaScript Data Types:

• Number
• String
• Boolean
• Undefined
• Null
• BigInt
• Symbol
• Object