Avoid creating new objects and functions repeatedly during renders to reduce memory pressure and improve performance. Implement these practices: 1. **Move static data outside components:** ```jsx // Instead of this: function MyComponent() { const spinnerBars = [ { animationDelay: -1.2, rotate: 0 }, { animationDelay: -1.1, rotate: 30 }, // ...more items ]; // component code } // Do this: const spinnerBars = Array.from({ length: 12 }, (_, index) => ({ animationDelay: -1.2 + 0.1 * index, rotate: 30 * index })); function MyComponent() { // component code } ``` 2. **Avoid inline function definitions in event handlers:** ```jsx // Instead of this: scrollTo(index)} /> // Do this: const handleScrollTo = (index) => () => scrollTo(index); ``` 3. **Prevent unnecessary object instantiation:** ```jsx // Instead of this: return new Date(date) >= new Date(now) // Do this when objects already exist: return date >= now ``` These optimizations reduce garbage collection overhead and improve rendering performance, especially in components that render frequently or in large lists.