Front end的意思

"Front end" is a term commonly used in software development, particularly in web development, to refer to the part of a system or application that the user interacts with. In the context of web development, the front end is what the user sees and interacts with in a web browser.

The front end of a website or web application is built using client-side technologies, which means they run on the user's device rather than on the server. This includes:

HTML (HyperText Markup Language): The structure of the web pages. CSS (Cascading Style Sheets): The style and layout of the web pages. JavaScript: The behavior and dynamic content of the web pages.

Front end development also involves the use of front end frameworks and libraries such as React, Angular, Vue.js, jQuery, and Bootstrap, which provide pre-built components and functionality to speed up development and improve the user experience.

In contrast, the "back end" of a web application refers to the server-side components, which are responsible for processing data, performing business logic, and communicating with databases or other external systems. The back end is typically built using server-side programming languages such as Python, Ruby, Java, PHP, or Node.js, and often includes a server, an application, and a database.