~/talk

Advanced TypeScript

on YouTube 01h 33m
Talkat JSWorld Conference 2021 · 2021-02-22..02-27· [typescript]

speaker

name:Harijs Deksnis
links:none on file

resources

video:https://youtu.be/GDs76It5iGM
slides:none on file

summary

Workshop covers practical TypeScript mechanics and outcomes: Conditional types with infer used to filter unions, Generics that track selected fields through a chainable SQL‑query‑builder type so run() returns a correctly typed Promise, mapped and template literal types (TypeScript 4.1) to generate key/name combinations, plus keyof typeof, utility types (Partial/Record/Pick/Omit) and decorators that replace descriptors or wrap methods for timing. Examples show actual code patterns and a working typed query builder.

AI-written summary · about

chapters (7)

  1. 0:00Beginning
  2. 4:16Interfaces vs Type aliases
  3. 8:17Conditional types
  4. 18:24Type manipulation
  5. 35:09Utility types
  6. 51:46Generics
  7. 1:12:42Decorators

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