Based on the current market situation, enterprises are more strict with the specific mainstream technology stack, pay more attention to breadth learning, have cross-terminal/back-end development capabilities, and will gradually pay attention to the assessment of the comprehensive strength of front-end and back-end talents; If we don't broaden the breadth of technology in time, I'm afraid the future development will encounter bottlenecks. Generally, you need to have some back-end related knowledge ~