g.grow.

Web Development Lesson 4 of 4

State Management, Custom Hooks, and Performance Tuning

31:10 Modern Frontend Architecture with React & Next.js

Master state architecture. Avoid premature global store libraries by utilizing compound components, URL search parameters, and custom hooks.

Lesson notes

The best state management is often no extra library at all. By synchronizing UI state with URL query parameters and local component state, your app becomes easily shareable and bookmarkable.

What you'll learn

  • URL state as the single source of truth for filters and pagination
  • Creating reusable custom hooks for local storage and media queries
  • Profiling re-renders and optimizing performance with React Compiler

1. URL State for Filtering and Search

When users filter courses or search topics, storing that state in the URL query string (`?category=design&search=figma`) allows them to refresh or share links effortlessly.