TypeScript Weekly

Issue #157 — November 11, 2020

Announcing TypeScript 4.1 RC

The release candidate of TypeScript 4.1 has landed and brings template literal types, key remapping in mapped types, recursive conditional types, and other improvements.

Daniel Rosenwasser

TypeScript’s Release Process

A write-up of TypeScript’s release scheduling and processes, aimed at both external users and the TypeScript team.

Daniel Rosenwasser

10 Insights from Adopting TypeScript at Scale

Rob Palmer shares some of the insights and lessons learned during Bloomberg Engineering’s journey to adopt TypeScript as a first-class supported language.

Rob Palmer

Building a Type-Checked URL Router

How to use the new template literal types feature (that will ship as part of TypeScript 4.1) to build a router with fully type-checked route parameters.

Jan Sommer

6 Ways to Narrow Types in TypeScript

Different ways to narrow types in TypeScript to avoid type errors.

Carl Rippon