Is it difficult for Yicheng Interactive Front-end Interview?

Easy to become an interactive front-end interview is difficult. According to the relevant public information, the front-end interview of Yicheng Interactive was conducted through a press conference, and the interview duration was about 40 minutes. I introduced myself and briefly described the box model (standard box model and weird box model). After defining which style, inline (non-block) elements can define the width and height, the method of centering block-level elements, the new features of css3, H5 common attributes, and the difference between localStorage and sessionStorage (localStorage does not disappear after closing the browser, but SessionStorage disappears after closing the browser). The difference between cookie and session (cookie is saved in the client and session is saved in the server, which is safer), what is closure, what is event delegation, brief description of let, var and const, promise, life cycle of vue, value transfer between components, judging whether there is a token when routing jumps, what UI components are there, input and output of paging components, and brief description of webpack.