Variadic Tuple Types, Computing with Types

TypeScript Weekly

Issue #143 — July 6, 2020

What’s coming in TypeScript 4?

An overview of upcoming features in TypeScript 4.0 with a handful of examples: variadic tuple types, labeled tuple types, new assignment operators, and more.

Tim Perry

Computing with Types in TypeScript

How to compute with types at compile time in TypeScript using literal types, mapped types, and conditional types.

Dr. Axel Rauschmayer

Experimenting with TypeScript’s Variadic Tuple Types

The upcoming variadic tuple types will allow us to express variadic functions and other patterns which we couldn’t type before without manually writing down multiple type definitions.

David Gomes

Type-Safe Blogs and Books with Literate TS

literate-ts statically checks TypeScript code samples in written text such blog posts or books. A clever approach to finding type errors in a book on TypeScript.

Dan Vanderkam

Union to Intersection Type

An interesting read on advanced features of TypeScript’s type system that let us implement a UnionToIntersection<T> helper type using conditional types, strict function types, and contravariant positions.

Stefan Baumgartner

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TypeScript 4.0 Beta, Type Guards and Assertion Functions

Monday, June 29, 2020

TypeScript Weekly Issue #142 — June 29, 2020 Announcing TypeScript 4.0 Beta The beta of TypeScript 4.0 is out and brings some exciting new features, including variadic tuple types, labeled tuple

Variadic Tuple Types, Interview with TypeScript's Engineering Lead

Monday, June 22, 2020

TypeScript Weekly Issue #141 — June 11, 2020 Talking TypeScript with the Engineering Lead An interview with Ryan Cavanaugh, the principal engineering lead for the TypeScript language at Microsoft. Ryan

TypeScript Types Deep Dive, Type Assertions

Thursday, June 11, 2020

TypeScript Weekly Issue #140 — June 11, 2020 Black Lives Matter. TypeScript Types Deep Dive (Part 1) In ~55 minutes, Jaime gives us an overview of how TypeScript is used at Google and walks us through

Introducing Snowpack 2.0, Dangers of TypeScript Enums

Wednesday, May 27, 2020

TypeScript Weekly Issue #138 — May 27, 2020 Introducing Snowpack 2.0 A build system for the modern web with built-in support for TypeScript and JSX. Fred K. Schott The Dangers of TypeScript Enums Tips

TypeScript Compiler in Rust, Dropbox's Migration to TypeScript

Tuesday, May 19, 2020

TypeScript Weekly Issue #137 — May 19, 2020 The Great CoffeeScript to TypeScript Migration of 2017 A detailed description of how Dropbox moved their codebase from CoffeeScript over to TypeScript.

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