After two years of Advent of Code in Rust, I thought I’d try TypeScript. I’ve always wanted to improve repo-review’s webapp, and that requires knowledge of the packaging systems for JavaScript, so I thought I’d try TypeScript this year. I also used this as an opportunity to learn more AI tooling too, mostly CoPilot in VSCode & ChatGPT. I’d like to share my experience and thoughts! My code is at aoc2025 (and aoc2024, aoc2023).
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