Front End Engineer

An excellent front-end engineer approach:

1, DNS resolution, the use of CDN, the resource requests dispersed to a number of domain names up;
2, Understanding HTTP Headers (Expires, Cache-control, if-modified-since);
3. All the high-performance Web page optimization rules of Steve souders (reference: Performance Websites book);
4. How to solve all the problems listed in Pagespeed, YSlow, Chrome dev Tools Audit, chrome dev tools timeline, etc.
5, when the task to the server, when suitable for uploading to the client;
6, caching, prefetching and delay loading technology use;
7, native JavaScript, know when to start from scratch, when to refer to other people's code, but also to evaluate the advantages and disadvantages of doing so;
8, the latest MVC Javascript library knowledge and usage;
9, the CSS standard knowledge and usage;
10, JavaScript Computer Science part of the Knowledge (memory management, garbage collection algorithm, etc.);
If you are proficient in html+css+js, understand the backend knowledge, only 60 points of qualified front end; to be a popular, high-paying 80 excellent front end, to the business needs and, architecture design have a real use, and 100 points of the top end, you must be able to balance technology and design, closer to the " The front-end development-oriented full stack engineer.

Front End Engineer