Face was (to be sorted)

 

Deep copy #
# new features the HTML5
# H5 label how to handle compatibility problems
# canvase compressed picture
# and the sessionStorage localStorage
# HTML5 semantic tags which
# responsive layout
# this point
# arrow function
process # new instance of a
# throttle anti shake

Headlines two faces

# Vue and react difference, event binding, animation, life cycle, js and front coupling
diff algorithms # vue and react in, key
Carousel Figure # how to achieve the logical
difference between # setTimeout and requestAnimationFrame, the browser event queue
# end mobile optimized, canvase compress pictures, lazy loading, base64, Sprite Figure
# long and short connection connection
# four waving three-way handshake
# backend to achieve high concurrency
# cache and strong negotiation cache
# two codes, jsonp digital-to-implement and Currency unit
# Gpu process, multi-process and multi-threaded browser

 

• He introduced himself, and asked the project
• Problem projects: the throttle, pre-loaded, small sub-program is loaded, xss attacks and defenses
• Event loop mechanism, I mentioned the micro-task promise and nexttick, he then asked nexttick implementation principle, did not answer it. Later asked the principle and implementation of promise, the answer it
• float collapse
• Uncertain elements comprise a wide and high internal element, the internal elements of vertical and horizontal center
• Js example, the relationship between the constructor, the object prototype, prototype, __ proto__
• Small differences in procedures and h5 (because my project contains them both, so ask to. Did not answer it, he wanted to hear is a small program is a dual-threaded, hey, not a moment to think of it)
• To the sun, using a border drawn
• Enter the url to the page from rendering processes, html parsing and congestion
• Because asked to html parsing, he out of a question, the content is outreach and inline js js error if the next script will not be executed and will make the picture could not be loaded (do not answer it, I have my understanding say are the next script can not be executed, the image can not be loaded, he told me to go back to try to know)
• To a file directory, so I packed manually with webpack
• How did you learn of the front end
• Questions: a checkerboard-like lawn after rain, part of the checkerboard on the lawn there are puddles, multiple consecutive checkerboard together is a puddle, asking how to calculate how much of the lawn puddles
• Finally is the chat, I asked him internship, work to your life, develop thinking what impact it? He told me that the next, knowledge campus are learning basic skills, with the actual development in the company is completely different, for example, said this point, the development of object-oriented style, business is extremely complex and changeable
• Author: life outside the rings so much suffering
  link: https://www.nowcoder.com/discuss/179509?type=2&order=0&pos=10&page=1
  Source: Cattle-off network
  
  
  • What do you think learning should have front-end (the interviewer could have been very serious, I have a front-end when it comes to love, what would he laughed and said what you do not love doing their job ah.)
  • Mobile end adaptive (viewport + media queries + rem, but he has not understand what I mean, I speak a little anxious, it has been repeatedly explained, but in the end asked: is not every element must be calculated manually rem value, how can you not like this? did not answer them, you should use cacl ())
  • http cache (cache finally asked to consult you know how to get last-modified files which were compared, did not answer it)
  • vue how the components communicate
  • vue-router principle, why vue-router without a page refresh
  • With something vue own (and I say yes and modular components, I think I answered a bit crap, but he did not ask to go)
  • Handwritten code: using the promise to achieve the object when multiple objects peomise resolved when processing results, which promise when the object is rejected processing error (I did not write it, I thought it was best to call promise.all, the original can not be invoked to achieve it. then I realized promise objects from scratch, wrote half of it take to see that promise is not realized objects that time is really embarrassing, awkward break the sky, I feel that interviewer might feel that I have a problem understanding ... )
  • Author: life outside the rings so much suffering
    link: https://www.nowcoder.com/discuss/179509?type=2&order=0&pos=10&page=1
    Source: Cattle-off network
    
    
    • float collapse
    • And box-size box model properties
    • Vertical center
    • es6 new features
    • Arrow difference function and the function of the ordinary
    • Common mode determination function tihs point
    • Find out about the node you (I said I wrote http server with a node (this who will not ah))
    • promise and the principle of state