What exactly does a web front-end engineer do?

The main work of the front-end development engineer is to organize and implement website reconstruction:

1. Optimization: After reconstruction according to W3C standards, the front-end can be The code organization is more orderly, which significantly improves the performance of the website, increases the website access speed, improves maintainability, and is more friendly to search engines;

2. Acceleration: The reconstructed website can bring Better user experience, the page redesigned with XHTML+CSS has smaller file size and faster download speed.

3. Purpose: The purpose of website reconstruction is not to make the web page more compliant with Web standards. The essence of reconstruction is to build a front-end flexible MVC framework, that is, HTML serves as the information model (Model) and CSS controls the style. (View), JavaScript is responsible for scheduling data and implementing certain display logic (Controller). At the same time, the code needs to have good reusability and maintainability. This is the basis for high efficiency, high quality development and collaborative development.

As people have higher and higher requirements for user experience, front-end development is becoming more and more technically difficult. The profession of Web front-end development engineer has finally become independent from the situation where design and production are not separated.