What are the various data types in JavaScript?

In JavaScript, data types can be categorized into primitive and non-primitive types:

Primitive data types

• Number: Represents both integers and floating-point numbers.
• String: Represents sequences of characters.
• Boolean: Represents true or false values.
• Undefined: A variable that has been declared but not assigned a value.
• Null: Represents the intentional absence of any object value.
• Symbol: A unique and immutable value used as object property keys. Read more in our deep dive on Symbols.
• BigInt: Represents integers with arbitrary precision.

Non-primitive (Reference) data types

• Object: Used to store collections of data.
• Array: An ordered collection of data.
• Function: A callable object.
• Date: Represents dates and times.
• RegExp: Represents regular expressions.
• Map: A collection of keyed data items.
• Set: A collection of unique values.

The primitive types store a single value, while non-primitive types can store collections of data or complex entities.