What are the built-in objects on the front end?

In front-end development, JavaScript is the most commonly used programming language. JavaScript built-in objects include Object, Array, String, Number, Boolean, Date, Math, RegExp, Function, Error, JSON, Document, Window, etc. Detailed introduction: 1. Object: object type object, which is the base class of all objects; 2. Array: array type object, used to store and operate a set of data, etc.

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

In front-end development, JavaScript is the most commonly used programming language. The following are some common JavaScript built-in objects:

Object: Object type object is the base class of all objects.

Array: Array type object, used to store and operate a set of data.

String: String type object, used to store and operate text data.

Number: Numeric type object, used to represent numeric values.

Boolean: Boolean type object, used to represent true or false values.

Date: Date type object, used to represent date and time.

Math: Mathematical calculation related objects, providing some commonly used mathematical functions and constants.

RegExp: Regular expression type object, used to match and process text patterns.

Function: Function type object, used to define and execute reusable code blocks.

Error: Error type object, used to represent and handle runtime errors.

JSON: Object used to parse and serialize JSON data.

Document: Document object, which represents the root node of the HTML document and provides methods for operating and accessing HTML elements.

Window: Window object, representing the browser window, provides methods and properties for interacting with the browser.

In addition to the above built-in objects, there are also some built-in objects unique to the browser environment, such as:

Navigator: Browser information object, which provides information about the browser.

Location: URL address object, providing information and operations related to the current page URL.

History: Browser history object, used to manage browser history.

These built-in objects can be used directly in JavaScript code without additional introduction or definition.

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