TS.03.03 Mid-level

Generic inference in depth

Comes up in: Coding

This concept is being written. It gets the full five steps — explanation, predict, interview angle, practice with tests, and review cards. Here is exactly what it will cover, so you can study it elsewhere in the meantime.

What it covers

where inference comes from
contextual typing
const type parameters
NoInfer<T>
why inference widens
designing generics with few type parameters

Words you will know

contextual typinginference siteconst type parameter

What you will practise

fix 4 badly inferred generic APIs

Interview questions this answers

What does NoInfer do?