Rethinking Browser Automation: Unleashing the Power of Puppeteer and Playwright
summary
Shows concrete claims and working code: Puppeteer and Playwright automate beyond scraping — screenshots, PDFs, visual regression, axe accessibility checks, code coverage and heap profiling with performance.getMetrics to enforce thresholds, and image batch edits via CSSgram. Demonstrates connecting over Chrome DevTools Protocol, using Puppeteer core + Chrome launcher to avoid the bundled browser, running on serverless/Cloud Functions, and a real PWA splash-generator that works. Notes a practical tradeoff: the browser bundle is 170–280 MB and a previous 76-line CDP snapshot shrinks to five lines with Puppeteer.
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chapters (21)
- 0:00Browser automation intro
- 1:00What is browser automation
- 3:09Puppeteer vs Playwright
- 5:59Basic usage guide
- 7:24DevTools Recorder
- 8:26Color scheme APIs
- 9:07Page comparison demo
- 10:33Accessibility testing
- 11:36Code coverage tips
- 13:02DevTools Protocol
- 16:13Low-level instrumentation
- 17:35Automation libraries evolution
- 18:40Lightweight Puppeteer
- 20:43Puppeteer Light demo
- 21:46Real-world automation
- 22:51Bulk image processing
- 23:34Visual regression testing
- 23:57Performance budgets
- 25:22Memory leak detection
- 26:05Cloud automation
- 27:09Key takeaways
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