~/talk

A Deep Dive Into Advanced Typescript: A Live Coding Expedition

Talkat Voxxed Days Ticino 2024 · on Friday, 2024-01-19· [typescript]

speaker

name:Christian Wörz

links:none on file

resources

video:https://youtu.be/wwMy2bhz-hs

slides:none on file

summary

Live coding shows concrete TypeScript tricks: use map types and template literal types to generate onAdd/onRemove handlers and chessboard keys, validate RGB strings at compile time with patterned template literals, and combine gap/margin permutations into optional CSS maps. Use never-based exhaustive checks to force compile-time coverage and a NoEmptyString type to reject "" inputs. Use infer plus recursion to extract return types and build readonly tuples of arbitrary length (practical limit ~999). A types-only arithmetic validator is on GitHub; numeric-range checks remain impractical. WID plugin helps inspect inferred results.

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