What are the 12 basic data types?

The 12 basic data types are: numbers, strings, Boolean values, null values, undefined, symbols, large integers, objects, arrays, functions, regular expressions, and dates. Detailed introduction: 1. Number: used to represent numbers, including integers and floating point numbers; 2. String: used to represent text, consisting of a series of characters; 3. Boolean: represents true Or false, there are only two values: true (true) and false (false); 4. Null: represents a null value or a non-existent object, etc.

Operating system for this tutorial: Windows 10 system, Dell G3 computer.

In JavaScript, there are the following 12 basic data types:

Number (Number): used to represent numbers, including integers and floating point numbers.

String: used to represent text, consisting of a series of characters.

Boolean value (Boolean): represents true or false, there are only two values: true (true) and false (false).

Null: Indicates a null value or non-existent object.

Undefined: Indicates an undefined value.

Symbol: Represents a unique identifier.

Big integer (BigInt): used to represent integers of arbitrary precision.

Object (Object): represents a complex data structure and can contain multiple key-value pairs.

Array (Array): Represents an ordered collection that can store multiple values.

Function: Represents an executable code block that can receive parameters and return results.

Regular expression (RegExp): Represents the pattern used to match strings.

Date (Date): represents date and time.

These basic data types can be used to store and operate different types of data, and are very common and important in JavaScript.

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