Daniel Rosenwasser

Senior Program Manager, TypeScript

Daniel Rosenwasser is the program manager of the TypeScript team. He has a passion for programming languages, compilers, and great developer tooling.

Post by this author

Announcing TypeScript 4.8

August 25th, 2022
Today we're excited to announce the release of TypeScript 4.8! If you're not yet familiar with TypeScript, it's a language that builds on JavaScript and adds syntax for types. These types let you put your expectations and assumptions into your code, and those assumptions can then be checked by the TypeScript type-checker. This checking can ...

Announcing TypeScript 4.8 RC

August 11th, 2022
Today we're excited to announce our Release Candidate (RC) of TypeScript 4.8. Between now and the stable release of TypeScript 4.8, we expect no further changes apart from critical bug fixes. To get started using the RC, you can get it through NuGet, or use npm with the following command: You can also get editor support by Here's...

Announcing TypeScript 4.8 Beta

June 21st, 2022
Today we're announcing our beta release of TypeScript 4.8! To get started using the beta, you can get it through NuGet, or- use npm with the following command: You can also get editor support by Here's a quick list of what's new in TypeScript 4.8! Improved Intersection Reduction, Union Compatibility, and ...

Announcing TypeScript 4.7

May 24th, 2022
Today we're excited to announce the availability of TypeScript 4.7! If you're not yet familiar with TypeScript, it's a language that builds on JavaScript and adds syntax for types. Types help describe what kinds of values you're working with and what kinds of functions you're calling. TypeScript can use this information to help you avoid ...

Announcing TypeScript 4.7 RC

May 11th, 2022
Today we're excited to announce our Release Candidate (RC) of TypeScript 4.7! Between now and the stable release of TypeScript 4.7, we expect no further changes apart from critical bug fixes. To get started using the RC, you can get it through NuGet, or use npm with the following command: You can also get editor support by Here's...

Announcing TypeScript 4.7 Beta

April 8th, 2022
Today we are excited to announce the beta release of TypeScript 4.7! To get started using the beta, you can use npm with the following command: You can also get editor support by Here's a quick list of what's new in TypeScript 4.7! ECMAScript Module Support in Node.js For the last few years, Node....

A Proposal For Type Syntax in JavaScript

March 9th, 2022
Today we're excited to announce our support and collaboration on a new Stage 0 proposal to bring optional and erasable type syntax to JavaScript. Because this new syntax wouldn't change how surrounding code runs, it would effectively act as comments. We think this has the potential to make TypeScript easier and faster to use for ...

Announcing TypeScript 4.6

February 28th, 2022
Today we're announcing the availability of TypeScript 4.6. If you're not yet familiar with TypeScript, it's a language that builds on JavaScript and adds syntax for types. Types help describe what kinds of values you're working with and what kinds of functions you're calling. TypeScript can use this information to help you avoid about ...

Announcing TypeScript 4.6 RC

February 11th, 2022
Today we're excited to announce our Release Candidate (RC) of TypeScript 4.6! Between now and the stable release of TypeScript 4.6, we expect no further changes apart from critical bug fixes. To get started using the RC, you can get it through NuGet, or use npm with the following command: You can also get editor support by...

Announcing TypeScript 4.6 Beta

January 21st, 2022
Today we are excited to announce the beta release of TypeScript 4.6! To get started using the beta, you can get it through NuGet, or use npm with the following command: You can also get editor support by Here's a quick list of what's new in TypeScript 4.6! Allowing Code in ...