Is the web front-end or back-end?

The web has a front end and a back end. The web front-end, also known as the "client," is about the visual aspects of the website that users can see and experience, that is, everything the user sees, what the web browser displays, and involves everything the user can see, touch, and experience. . The web backend, also known as the "server side", is all content that users cannot view and interact with in the browser. The web backend is responsible for storing and organizing data and ensuring that everything on the web frontend works properly. The web backend communicates with the frontend, sending and receiving information to be displayed as a web page.

The operating environment of this tutorial: Windows 7 system, Dell G3 computer.

The web has a front end and a back end.

web front end

The web front end, also known as the "client", is about the website that users can see and experience The visual aspect, that is, everything a user sees that a web browser displays, involves everything the user can see, touch, and experience. Such as graphical user interface (GUI) and command line, including design, navigation menu, text, colorful images, videos, gorgeous buttons, etc.

Web front-end development needs to be built using technologies such as Hypertext Markup Language (HTML), HTML5 (the latest version of HTML), JavaScript, and Cascading Style Sheets (CSS, CSS3).

Web front-end developers design and build user experience elements on a web page or application, including buttons, menus, pages, links, graphics, etc.

web backend

The web backend, also known as the "server side", is what users cannot view and interact with in the browser Everything, such as databases and servers. Basically, everything that happens behind the scenes boils down to web backend development, which is the enabler of the web frontend experience.

The web backend is responsible for storing and organizing data and ensuring that everything on the web frontend works properly. The backend communicates with the frontend, sending and receiving information to be displayed as a web page.

The Web backend facilitates communication between the presentation layer and the business layer and plays a vital role in Web development; Web backend development requires the use of C/C/C#, Java, Ruby, Python, PHP, .Net and other languages.

People who usually work on the backend are called programmers or developers. Backend developers need to handle everything that doesn't involve generating a user interface, such as writing APIs, creating libraries, or adding utilities to everything a web designer creates.

The role of a back-end developer is highly collaborative compared to a web front-end designer. In a nutshell, backend web development is the combination of development and maintenance of the core functional logic of a software application, with backend developers writing the code to make sure everything works properly on the frontend.

Compared with Web front-end designers, back-end developers tend to spend more time calculating logic and implementing algorithms to ensure that the website runs properly; the Web back-end is the brain of a website.

The difference between web front-end and back-end

1. Different definitions

Generally speaking, We divide the website into front-end and back-end. The front-end is mainly responsible for the display of the page, while the back-end is the implementation of business logic.

• Web front-end

As the name suggests, it is used to make the front-end of the Web. The front-end mentioned here generally refers to the Web front-end, which is what users can see and touch in Web applications. Including the structure of the Web page, the appearance and visual representation of the Web, and the implementation of interaction at the Web level.

• Web backend:

The backend is more about interacting with the database to process the corresponding business logic. What needs to be considered is how to implement functions, data access, platform stability and performance, etc.

2. Different technologies need to be mastered

Web front-end:

Proficient in JS, able to skillfully apply JQuery, understand CSS, and be able to skillfully use these knowledge to develop interactive effects .

• (1) Proficient in HTML, able to write HTML structures with reasonable semantics, clear structure, and easy to maintain;

• (2) Proficient in CSS, Able to restore the visual design and be compatible with mainstream browsers recognized by the industry;

• (3) Be familiar with JavaScript, understand the basic content of ECMAScript, and master 1-2 js frameworks, such as JQuery;

• (4) Have a clear understanding of common browser compatibility issues and have reliable solutions;

• (5) Have a good understanding of performance Under certain requirements, understand Yahoo's performance optimization suggestions and be able to effectively implement them in the project.

Web back-end:

Back-end developer: Can write Java code, can write SQL statements, can do simple database design, knows Spring and iBatis, understands Some design patterns etc.

• (1) Proficient in jsp, servlet, javabean, JMS, EJB, Jdbc, Flex development, or very familiar with related tools, class libraries and frameworks, such as Velocity, Spring, Hibernate , iBatis, OSGI, etc., have a deep understanding of Web development models;

• (2) Practice using commonly used database systems such as oracle, sqlserver, mysql, etc., and have a strong understanding of databases Design capabilities;

• (3) Applicants who are familiar with maven project configuration management tools, familiar with application servers such as tomcat and jboss, and have relevant experience in load tuning under high concurrency processing conditions will be given priority;

• (4) Proficient in object-oriented analysis and design technology, including design patterns, UML modeling, etc.;

• (5) Familiar with network programming, with design and Experience and ability in developing external API interfaces, as well as cross-platform API specification design and efficient API call design capabilities.

(Learning video sharing: Getting started with web front-end)

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