Javascript Programming Tutorials, Guides & Best Practices
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React Component Memoization useMemo useCallback react performance optimization react.memo context api avoid re-renders react rendering memoization in react optimize react components react context best practices reduce re-renders react slow app fix efficient state management react profiling react performance tips react optimization guide performance boost react unnecessary re-render react slow ui fix
Tutorial
Mastering React Rendering Performance with Memoization and Context
import React from 'react';
const Greeting = React.memo(function Greeting({ name }) {
console.log("Greeting rendered");
return <h3>Hello{name && ', '}{name}!</h3>;
});In this example, Greeting will only re-render when the name prop changes. This optimization is particularly beneficial for components that render frequently with the same props.([React][4], [Content That Scales][5])
May 03, 2025
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