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Awwwards Class Sandbox

Render. Batch.
Racer States.

Optimize rendering hooks, prevent virtual DOM redraws, and manage custom batch transition hooks to keep UI components fast.

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10 Modules Course Syllabus

Interactive Landing Sandboxes

Select a topic below to inspect the curriculum lessons and practice code playground templates.

react module

React State Racer

Isolate component states, custom hooks, and virtual DOM render pipelines.

  • Prevent component redraw cycles using hooks (useMemo, useCallback).
  • Isolate render changes inside lightweight custom state stores.
  • Coordinate server-side state hydration without causing component mismatch errors.
playgrounds/sandbox.ts
Active Playground
// Optimized React Rerender Pipeline
import React, { useState, useCallback, useMemo } from 'react';

export const ListRenderer = React.memo(({ items }: { items: string[] }) => {
  const [filter, setFilter] = useState("");
  
  const filtered = useMemo(() => 
    items.filter(item => item.includes(filter)), [items, filter]
  );

  const onClear = useCallback(() => setFilter(""), []);

  return <input value={filter} onChange={e => setFilter(e.target.value)} />;
});