• [Engineering]
  • React state management
  • React Query

• [Engineering]
  • MDX: using React in Markdown
  • MJML:better at creating email templates

• [Engineering] TS everyday types
  • Primitive types
  • Object types
  • Union types
  • Interface
  • Type Assertions
  • Literal types
  • Keywords: narrowing, contextual typing, infer typing, literal inference, alias just alias - point into the same type,

• [Engineering]
  • System thinking for high leverage strategies

• [Mathematics] Interpolation vs Extrapolation
  • Interpolation for find past unknown values, where extrapolation for future forecast.
  • Interpolation methods: linear, polynomial, spline.
  • Extrapolation methods: linear, polynomial, conic

• [How to]
  • Write Good Alt Text

• [Engineering]
  • Ruby Marcel for mine type

• [Tech News]
  • daily.dev
  • top startups
  • top 10 Hacker News
  • Tech Radar
• [Ideas]
  • Use RSS
• [Interest]
  • Know about HN Who is Hiring?
  • Cache invalidation solution from Meta
• [Engineering]
  • Ruby 2.7 pattern matching

• [Engineering] Typescript for JS Programmer
  • Type by Inference: TS will define type of a variable by assigned value
  • Interfaces vs Types: using interface to define type
  • Unions: a variable can have multiple types

      function getLength(obj: string | string[])
    

  • Generics: can use Type as generic Type and assign a specific type to Type in declare

      interface Container<Type> {
        push: (obj: Type) => void;
        pop: () => Type;
      }
    
      declare const stringContainer: Container<string>;
      stringContainer.push("abc");
    

  • Duck Typing = Structural Typing = shape-matching:

      interface Point {
        x: number;
        y: number;
      }
    
      const point = { x: 1, y: 2 }; // auto match to Point type
      const rect = { x: 1, y: 2, width: 10, height: 30 }; // auto match to Point type (kind of casting to Point)
      const color = { hex: "#FFFFFF" }; // failed-matched to Point type
    

• [Portfolio Idea]
  • Tried portfolio-ideas repo
  • Fork and create PR to add my portfolio
• [Portfolio]
  • Revise tri-dang.github.io
• [Engineering]
  • What is a 1X Engineer?
  • Read through repos and pull request

• [Algorithm] Binary Tree:
  • Definition
  • Inorder, preorder, postorder travesal a tree
  • Level order travesal: breath first search
  • Solve some problems: maximum depth, symmetric tree, path sum
  • Build a tree from inorder, preorder and inorder, postorder

• [Algorithm] First read of Introduction to Algorithms, 3rd Edition
  • A algorithm = procedure by getting input and give out output
  • Terminologies: algorithm, data stucture, problem, instances of problem, …
  • A algorithm running must be terminated and giving out correct outputs ontime
  • Algorithms’ applications in real world and its need for engineering
  • Efficiency: computing time + space. Compare with a faster computer, a much slower computer can give faster output with a better algorithm that have smaller complexity
  • NP-complete problem and approximate algorithm approach

[Engineering] How to schedule bug fixing?

The workflow: notice => first inspection => schedule the fix => Fix => Report

• For Shared platform
  • (Re-)Raise the awareness of the important of sentry priority
  • We need a sentry coordinator.
• Microservice
  • Each team should setup the slack channel to filter the team related bugs
• General
  • We need a clear commitment from PO & Squad team.