TypeScript: What’s New in 2.2

on YouTube ↗18m

" summary

TypeScript 2.2 focuses on concrete tooling: editor quick fixes that scaffold abstract methods and super calls, mixin support, and a faster release cadence (two-month feature releases plus patch releases), with adoption claims — ninth most popular, seventh in web, sixth Most Wanted, third most loved. 2.3 surfaces downlevel iteration, brings async generators, provides a global strict umbrella flag and generic defaults, and adds allowJs soft-checking plus language-service extensibility to ease migration.

AI-written summary · about

" chapters (6)

1. 0:00Introduction
2. 1:20Stack Overflow Survey
3. 4:13New Release Cadence
4. 6:03New tooling
5. 13:10Iterable support
6. 14:20New flags

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