Practice
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9 articles
How React 18 scheduling works: urgent vs non-urgent updates, useTransition, interruptible rendering, and how these tools improve responsiveness (INP).
A guided entry point into the Web Performance roadmap with curated paths (2 hours / 1 day / 1 week) + exactly what to measure and why it matters in interviews.
High-signal web performance interview questions with crisp answers: Core Web Vitals, caching, rendering, images, fonts, JS cost, and debugging.
A collection of practical performance fixes with before/after patterns: LCP hero, INP long tasks, CLS shifts, caching, and third-party containment.
How JS hurts INP and load performance, how to find long tasks, and practical patterns to reduce client JS in modern apps (especially Next.js).
How fonts hurt LCP/CLS, when to preload, how font-display works, and practical strategies to avoid layout shift with good typography.
How to ship fast images: responsive sizes, AVIF/WebP, LCP hero strategy, lazy loading, and when preloading helps (or hurts).
A high-signal mental model for LCP, INP, and CLS: what they measure, what actually moves the needle, and how to debug them in real apps.
A deep, practical guide to Core Web Vitals for frontend interviews: what LCP/CLS/INP measure, common causes, how to debug in DevTools, and high-impact fixes.