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What skills do front-end engineers need?
The development history of HTML has been more than 20 years. After several version updates, the appearance of HTML5 and CSS3 is another innovation. Some people think that the skill that front-end development needs to master is simple, that is, making web pages. Actually, it is not. As one of the most difficult languages, xHTML+CSS+JavaScript, the core language that web front-end needs to master, many programmers dare not sell themselves short and claim to be proficient. Because of the difference between JavaScript and html, and some advantages of separating static and dynamic processing. In large companies, static effects and dynamic effects are often written by different people. Because small companies want to reduce costs, they ask everyone to learn as much as possible. If you want to develop into a project manager, knowing one or two background languages is definitely icing on the cake!
2. Browser compatibility
At present, mainstream Internet browsers include IE6\7\8\9, Firefox, Chrome, Opera, Safari and Roam, including domestic mainstream sogou, Tencent TT, 360 and Tianxia. From the kernel point of view, there are mainly IE, roaming version of IE, safari, firefox, opera, which are common to everyone. If you have an old Internet addict who likes to collect browsers, you can look through his hard disk. I believe there are dozens of them. Every kernel does not analyze the code exactly the same, even the same kernel may be very different, such as IE and roaming IE. Not to mention non-mainstream browsers, it is not easy for mainstream browsers to be fully compatible. It takes a long time to accumulate and test, and it needs the love and passion of front-end development engineers for front-end development.
At present, the development trend of mobile Internet should not be underestimated, and it will gradually occupy the main share of the Internet. The most prominent advantages of mobile Internet are convenience and timeliness. Imagine walking in a beautiful place and sharing it with friends from all walks of life. Therefore, it is urgent to see the compatibility of browsers on mobile phones. At present, the browsers on mobile phones are also complicated, including mainstream UCWEB, safari, IE, 3G portals, and "disabled children" of symbian low-end phones, including some browsers of foreign popular mobile phones that we don't know. To make matters worse, these browsers are all based on the analysis of mobile phone hardware.
3. Hacking technology
Because different browsers have different understanding of CSS parsing, it will lead to different page effects. At this time, you need to write different CSS for different browsers. This process is called CSS hack. Although we are required to write code according to the standard, but in practical work, in order to be compatible with mainstream browsers, hack code is inevitable, so this should also be an essential skill for every front-end developer.
4. Industry standards
At present, W3C standard is the most frequently mentioned in Web front-end development, which is a collection of standards, representing the development direction of the Internet and a belief in front-end development. All the codes written must pass the standard verification of 100% and be proud of passing the standard verification, which will effectively promote the rapid development of the Internet.
5. Develop tools
Dreamweaver is quite popular at present. It was once all the rage, and it has not left the historical stage until now, which proves that DW still has great advantages, especially for beginners. Its powerful prompt function can help us get familiar with and master the layout of web pages quickly, but now we advocate pure handwritten code, which not only embodies the improvement of skills, but also effectively avoids redundant code generated by tools such as DW. In addition, if you master some photoshop skills, you can simply process some images even without artists.
To sum up, with the above skills, you can be said to be a qualified front-end developer, who can participate in large-scale projects or write web pages independently. Although this looks similar to the design of web pages, from the effect point of view, they are all making web pages, but in fact the technology is beyond several grades.
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