What are the basic data types in javascript

There are 7 basic data types in JavaScript: Number, String, Boolean, null, undefined, Symbol, BigInt. These types are used to represent basic data values, including numeric values, literals, true and false values, non-existent values, unassigned values, unique identifiers, and arbitrary-length integers.

Basic data types in JavaScript

Basic data types in JavaScript are built-in data types used to represent data type. They are:

• Number
• String
• Boolean
• null
• undefined
• Symbol (ES6 New)
• BigInt (New in ES2020)

Number

The Number type is used to represent numeric values. It can be an integer, a floating point number, a number in scientific notation, or Infinity and -Infinity.

String

String type is used to represent text data. It consists of a set of characters enclosed in quotes (single or double quotes).

Boolean

The Boolean type is used to represent true and false values. It has only two possible values: true and false.

null

The null type represents a value that does not exist. It is a special value indicating that a variable or property has no assigned value.

undefined

The undefined type indicates that a variable or property has not been assigned a value. It is a special value that, unlike null, indicates that the variable exists but has no value.

Symbol

The Symbol type is used to create unique identifiers. It is an immutable value and cannot be converted to other types.

BigInt

The BigInt type is used to represent integers of arbitrary length. It solves the problem in JavaScript that the Number type cannot represent numbers beyond the safe integer range.

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