TypeScript and Set Theory, Understanding “keyof typeof”

TypeScript Weekly

Issue #189 — April 21, 2022

Types as Comments with the TypeScript Team

Ryan Cavanaugh and Daniel Rosenwasser talk about the Type Annotations ECMAScript proposal in a JS Party episode on the Changelog podcast.

Ryan Cavanaugh & Daniel Rosenwasser

TypeScript and Set Theory

Iván explores how set theory helps us understand type assignability and resolution in TypeScript.

Iván Ovejero

What is your favorite Node.js ORM in 2022?

We would love to hear about your preferences in this anonymous 1-minute survey. Your input will help us build a better open source ORM for Node.js and TypeScript. Results will be shared via our Twitter account (@prisma) in the coming weeks.

Prisma Team (Sponsored)

Understanding “keyof typeof”

A brief explanation of how the keyword combination keyof typeof works.

Huy

Upgrading to React 18 with TypeScript

The upgrade of the React type definitions to support React 18 involved some significant breaking changes. In this post, John digs into that and examines what the upgrade path looks like.

John Reilly

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TypeScript 4.7 Beta, Dealing with Undefined

Monday, April 11, 2022

TypeScript Weekly Issue #188 — April 11, 2022 Announcing TypeScript 4.7 Beta The beta of TypeScript 4.7 adds several new features related to ECMAScript module support in Node. It also ships with

Variance Annotations in TypeScript, Functional Programming

Thursday, March 31, 2022

TypeScript Weekly Issue #187 — March 31, 2022 Functional Programming in TypeScript How Haskell knowledge can help you write better TypeScript code in a functional programming style. Aleksandr Pakulev

Typing Polymorphic Functions, Wordle in the Type System

Monday, March 21, 2022

TypeScript Weekly Issue #186 — March 21, 2022 Type Polymorphic Functions In TypeScript How to statically type functions that behave differently depending on the number and types of their arguments.

TypeScript 4.6, Type Syntax in JavaScript

Thursday, March 10, 2022

TypeScript Weekly Issue #185 — March 10, 2022 Announcing TypeScript 4.6 TypeScript 4.6 is out and ships with various quality-of-life improvements to TypeScript. Most notably, this includes control flow

TypeScript 4.6 RC, Assertion Functions, Type Hierarchy

Sunday, February 27, 2022

TypeScript Weekly Issue #184 — February 27, 2022 Announcing TypeScript 4.6 RC The release candidate of TypeScript 4.6 is out and ships with various quality-of-life improvements to TypeScript. Most

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