What are the two categories of JavaScript data types?

Javascript data types are divided into:

Value types (basic types): String, Number, Boolean ( Boolean), Null, Undefined, Symbol.

Reference data types: Object, Array, Function.

Dynamic typing:

JavaScript has dynamic typing. This means that the same variable can be used as different types.

Example:

The result shows:

Three ways to declare arrays :

Two addressing modes for object properties:

Example:

Output:

Recommended tutorial: js introductory tutorial

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