Lately we’ve been noticing a lot of NaN’s show up in our app. We search for the source and find the following code: We sigh to ourselves, and decide maybe it’s finally time to add a type checker. We… (more…)

Microsoft announces TypeScript 2.3 with Language server plugin support and exiting new features. For those who aren’t familiar, TypeScript is a superset of... (more…)

Or perhaps I should call this "@types and repeatable builds".... The other day, on a React / TypeScript project I work on, the nightly CI ... (more…)

In ES6/ES2015, you can import json file in your code. For example,...

This PR introduces Mapped Types, a new kind of object type that maps a type representing property names over a property declaration template. In combination with index types and indexed access type...