Tom Bartel

With the rewrite of our core product web application, we moved from a PHP/JavaScript tech stack to a Next.js stack. One of the most significant changes for developers was the switch to TypeScript, which most of us had not had a lot of experience with, previously.

From April 2020 until the end of 2021, we have put trivago’s web frontend on a new tech stack. Having moved away from a quite large PHP codebase and our home-grown JavaScript framework Melody, trivago now runs on a Next.js application, written in TypeScript.

trivago open sourced a Prettier plugin for the Twig template language. It is available under the Apache 2.0 license, and you can access it on trivago's Github space.

It was a very special occasion for all JavaScript enthusiasts at trivago: Tobias Koppers, original creator of webpack, and now member of the webpack core team, visited us in our Düsseldorf office. Since we rely on webpack to build not only some very important internal tools, but also our core product, its importance to us cannot be overstated.

Ten participants from nine countries — India, Cuba, Tunisia, England, Poland, Spain, Indonesia, Malaysia, and Brazil. Even on trivago scale, this kind of diversity was impressive.

trivago engineering is excited and looking forward to welcoming Kyle Simpson to the spectacular new trivago Campus.

Imagine a world without open source software. Pretty scary, isn't it?

Education.

You do not run a successful, stable software project over several years without some amount of automated testing. If several dozens of developers are working on the same code base, the need for test automation becomes even greater. After all, their changes might have unintended effects on other people's code, or on certain edge cases that will not be noticed until the changes go live — and maybe not even then.