Solid.js Has a Free Reactive Framework That's 5x Faster Than React — No Virtual DOM, No Re-Renders

The React Problem React re-renders entire component trees. useMemo, useCallback, React.memo — you spend more time optimizing renders than writing features. Solid.js uses fine-grained reactivity. Components run ONCE. Only the exact DOM nodes that depend on changed data update. No virtual DOM. What Solid.js Gives You Signals (Reactive Primitives) import { createSignal } from ' solid-js ' ; function Counter () { const [ count , setCount ] = createSignal ( 0 ); // This function runs ONCE. Only {count()} updates in the DOM. return ( < button onClick = { () => setCount ( c => c + 1 ) } > Count: { count () } </ button > ); } No re-renders. The count() call creates a subscription. When count changes, ONLY that text node updates. Derived State const [ firstName , setFirstName ] = createSignal ( ' John ' ); const [ lastName , setLastName ] = createSignal ( ' Doe ' ); // Automatically re-computes when dependencies change const fullName = () => ` ${ firstName ()} ${ lastName ()} ` ; No useMemo. No