POST(TYPESCRIPT)netgod.dev manualPOST(TYPESCRIPT)
NAME
$ 10 TypeScript Tips I Wish I Knew Earlier
DESCRIPTION
Discriminated unions, branded types, satisfies — small patterns that make a huge difference once they're in your toolbox.
./assets/typescript-tips-i-wish-i-knew-earlier.pngcover
CONTENT
TypeScript rewards investment. The deeper you go, the more the compiler becomes a co-pilot rather than a gatekeeper.
1. Use satisfies
It validates a value against a type without widening it. Perfect for config objects.
2. Branded types
Wrap primitives so a UserId can never be passed where a PostId is expected.
3. Discriminated unions over enums
They model domain states better and play nicely with exhaustive switch checks.
The rest of the list digs into template literal types, conditional types, and the underrated NoInfer helper.
netgod.dev manual2025-03-28END