“I am one of the world’s oldest remaining world” s 20 years of unused hand-written source code are a little rusty

One side (video side 1 hour) February 21

  • To introduce myself

  • CSS layout, clear float method, what is BFC, how to trigger

  • Can you write a bind and apply by hand

  • Handwritten promise source code, in addition to the promise. All method and promise. Race method

  • What is the difference between a deep copy and a shallow copy? Write a deep copy function that can handle circular references and dates and regs

  • Implement JS sort API, the specific sorting algorithm to determine their own, here I chose the fast row

  • Algorithm to merge two ordered linked lists

  • Algorithm, after an ordered array is reversed, find the KTH largest element (time complexity is less than or equal to nlogn)

  • What are the new apis for ES6? Talk about each in detail

  • Vue response type principle, read the source code

  • The principle of the Vue diff algorithm, here I talk about vue diff and React diff, and analyze their similarities and differences

  • Difference between HTTP and HTTPS

  • The process of a URL from input to page presentation

  • HTTPS handshake, the details of the process

  • Several methods to determine data types, advantages and disadvantages, implementation

Second interview (video interview for 1 hour) on February 21

  • Learn about React

  • React setState, is it subtree rendering or whole tree rendering or something else?

  • Is setState asynchronous or synchronous, and what mechanism is used internally

  • React event? What is the difference between a synthetic event and an ordinary event? How does it work

  • React Fibber? (Only time slice rotation algorithm, scheduling strategy)

  • React Diff (last_index)

  • Algorithm to determine whether a string is a palindrome string

  • Algorithm, Maximum Continuous Subsequence (DP)

  • The instanceOf principle, hand write an instanceOf

  • React is developed in several ways

  • React: Pros and cons of writing a function versus a class

  • What are the two new life cycles for the React component and what do they do

  • React Hook? Which hooks have been used

  • React High-order components react high-order components react high-order components

  • When and what can you do with useRef

  • Algorithm, linked list inversion

The whole process is quite stressful, and the technical stack used by the project team is my favorite React+typescript stack