# React

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Building a Product Tour in React

date: April 11, 2025 author: Leander Rodrigues

How we went about building a performant, in-app product tour API using only React
Formatting SQL in the Browser Using PEG

date: April 8, 2025 author: George Gritsouk

Writing a rudimentary SQL parser and formatter in JavaScript that handles Sentry's need to format invalid SQL and output into JSX.
Better Code Rendering Through Virtualization

date: December 3, 2024 author: Nicholas Deschenes

How we rebuilt Codecov's code renderer from the ground up to be faster and more efficient, utilizing virtualization.
Perfectly Fitting Text to Container in React

date: October 18, 2024 author: George Gritsouk

Building a React component that automatically updates its font size to fill its parent element as fully as possible.
Improving DX: From Unreadable CSS Selectors to Clear React Component Names

date: May 30, 2024 author: Catherine Lee

How to transform unreadable CSS selectors to React component names.
Sentry’s Frontend Tests: Migrating from Enzyme to React Testing Library

date: February 23, 2023 author: Priscila Oliveira

With over 700 pull requests a month, making sure Sentry's test suite runs quicky is extremely important. This post will talk about our journey converting our component tests from Enzyme to React Testing Library that t...
Slow and Steady: Converting Sentry’s Entire Frontend to TypeScript

date: April 12, 2021 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 ...