Datatypes

JavaScript datatypes are the classifications of data used in programming to define the nature of values. They include:

1. Primitive Data Types: These are basic data types that are immutable (unchangeable) and directly hold values. They include:
2. Number: Represents numeric values like integers and floating-point numbers.
3. String: Represents textual data enclosed within single or double quotes.
4. Boolean: Represents true or false values.
5. Undefined: Represents a variable that has been declared but not assigned a value.
6. Null: Represents the absence of any value or object.
7. Symbol (added in ECMAScript 6): Represents a unique identifier.

Composite Data Types: These are data types that can hold multiple values and are mutable (changeable). They include:

1. Object: Represents a collection of key-value pairs where values can be of any datatype, including other objects, functions, and arrays.
2. Array: Represents a list-like collection of elements, each identified by an index starting from 0.

Understanding these datatypes is crucial for effectively managing data and performing operations in JavaScript programs.

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