If a variable gets a type but no one looks at it, does it really get a type at all? This post looks at how type inference is implemented in the TypeScript compiler. It's of some interest to anyone who uses TypeScript and is curious how it works, but it will be most relevant to developers who want to contribute to TypeScript itself.| effectivetypescript.com
TypeScript 5.5 introduces type predicate inference from function bodies, simplifying type narrowing and making development easier.| Total TypeScript
Type guards are a powerful tool for improving TypeScript's built-in control flow analysis. This post looks at when it's appropriate to use a type predicate, and in particular what it means when a type predicate returns false.| effectivetypescript.com
Today we’re excited to announce the availability of TypeScript 4.4! If you haven’t heard of TypeScript yet, it’s a language that builds on JavaScript by adding syntax for static types. Tools like the TypeScript compiler just erase those types, leaving you with clean readable JavaScript that you can run anywhere; but those types are there to […]| TypeScript
It's Christmastime and I've been happily working through this year's Advent of Code in Deno (look forward to a blog post in the new year). What with all the presents, it's a good time to think about what we'd most like to see from TypeScript in the new year. Here are my top seven feature requests for 2023. Yes, that's a lot, but really I'd be thrilled with just one or two. Pretty please?| effectivetypescript.com
Understand how TypeScript uses JavaScript knowledge to reduce the amount of type syntax in your projects.| www.typescriptlang.org
