TypeScript 4.4 has been released and brings control flow analysis of aliased conditions, a new flag for exact optional property types, symbol and template string pattern index signatures, and more.
How to write TypeScript interface types in JSDoc comments in a plain .js file. This is especially useful when you want to avoid having to introduce any build step or using the .ts file extension.
An opinion piece by Stefan about why using the any type “is absolutely ok”, pushing back against the somewhat popular movement that the any type should be avoided at all costs.