Let's talk about the requirements for front-end web

With the continuous development of Internet technology in recent years, front-end web engineers have gradually become a high-profile group of people in the IT industry. Front-end web engineers are responsible for the design, production, implementation and maintenance of the front-end page of the website, the part that users can see on the page. So what skills do you need to become an excellent front-end web engineer? This article will discuss the following aspects.

1. Html/Css basics
Html and Css are the foundation of front-end web development. If you want to become an excellent front-end web engineer, you must first have a solid grasp of Html and Css-related knowledge. Including the basic structure of Html pages, the use of tags and attributes, various layout methods, Css selectors, styles and layouts, etc. Learning Html and CSS well will allow you to quickly build beautiful and standardized pages, and it will also make it easier to understand and apply the techniques you will learn later.

2. JavaScript/JQuery skills
JavaScript is an essential skill in front-end web development. Mastering JavaScript can allow you to achieve more effects, such as dynamic refresh, form verification, page interaction, etc. . At the same time, learning jQuery is also very necessary, because it simplifies the writing of JavaScript and makes us more efficient and faster in the development process. Mastering jQuery's syntax and common plug-ins can improve your efficiency and make you more comfortable in the development process.

3. Responsive layout
In recent years, with the popularity of mobile devices, responsive layout has become a very important concept. What is responsive layout? To put it simply, the page can automatically adapt to different screen sizes and devices to ensure that users have a good browsing experience on different devices. Mastering responsive layout technology allows you to quickly develop web pages that are suitable for various devices.

4. Mobile Adaptation
Another skill closely related to responsive layout is mobile adaptation. When developing pages suitable for mobile devices, we need to take into account the resolution, system, browser and other factors of different devices. This requires us to master some adaptation skills, such as flexible layout, rem adaptation, etc. Mobile adaptation skills can allow you to develop pages that are more suitable for mobile devices and improve the user experience.

5. Performance Optimization
Website performance optimization is also an important skill that front-end web engineers need to master. Optimizing website performance can speed up the loading speed of the website, improve user experience, and allow the website to obtain better rankings on search engines. Some common performance optimization techniques include compressing page resources, reducing http requests, image optimization, etc.

6. Cross-domain issues
When a web page needs to use resources from different sources, it will face cross-domain issues. At this time, we need to master cross-domain solutions, such as jsonp, CORS, nginx reverse proxy, iframe, etc. Proficient in cross-domain skills can help us solve some common cross-domain problems.

Conclusion
In summary, to become an excellent front-end web engineer, you need to master the basics of Html and Css, JavaScript/JQuery skills, responsive layout, mobile adaptation skills, performance optimization, cross- domain skills. In the process of continuous practice and learning, we can continuously improve ourselves and become better front-end web engineers.

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