Crawlee is a web scraping and browser automation library developed by Apify, designed to help developers build reliable scrapers quickly. It mimics human browsing behavior to effectively bypass modern bot protections. The library provides a unified interface for both HTTP and headless browser (e.g., Playwright, Puppeteer) crawling. Key features include persistent request queues, pluggable data storage, automatic proxy rotation, and session management, with CLI support for rapid project bootstrapping and easy deployment to cloud platforms.
Jest is a delightful, comprehensive JavaScript testing framework that works out-of-the-box for most projects with minimal configuration. Originally developed by Facebook, it provides an exceptional developer experience by offering instant feedback through a fast, interactive watch mode that only executes tests related to recently changed files. Furthermore, Jest features built-in snapshot testing to easily capture and track changes in large objects or UI components over time. With robust support for modern toolchains like Babel, Vite, webpack, Parcel, and TypeScript, Jest serves as a highly versatile and reliable testing solution for modern web applications.