# Typescript
2 posts- Building a Product Tour in Reactdate: author: Leander Rodrigues
How we went about building a performant, in-app product tour API using only React
- Slow and Steady: Converting Sentry’s Entire Frontend to TypeScriptdate: author: Mark Story
Recently, Sentry converted 100% of its frontend React codebase from JavaScript to TypeScript. This year-long effort spanned over a dozen members of the engineering team, 1,100 files, and 95,000 lines of code. In this ...