The BEST keyword combination in TypeScript NO ONE knows about

Find all the code here!: https://github.com/BoscoDomingo/YouTube/tree/main/ts/src/2025-11-29_as_const_satisfies

Issue #1: https://github.com/microsoft/TypeScript/issues/59577

Issue #2: https://github.com/microsoft/TypeScript/issues/51556

Timestamps:
0:00 Intro
0:46 The problem with types
1:42 What `satisfies` does
3:11 What is type widening?
4:17 What `as const` does
5:48 What `as const satisfies` does
7:49 Recap
8:38 Real-world examples 1: API Routes
11:31 Real-world examples 2: Type-safe configuration
13:17 Real-world examples 3: Frontend design values
15:24 Limitations
18:59 TL;DR

Видео The BEST keyword combination in TypeScript NO ONE knows about канала Elite Software Engineering