Coder wize: A Guide to Software Development Excellence

5 Tips to Optimize React Native Performance React Native has become one of the most popular frameworks for building mobile apps, thanks to its ability to create high-performing and responsive apps that run smoothly on both iOS and Android. However, as apps grow in complexity and features, it becomes increasingly important to optimize performance to ensure a great user experience. In this blog post, we’ll cover 5 advanced techniques for optimizing React Native performance. Code splitting: One of the most effective ways to optimize performance is by code splitting. This technique allows you to divide your codebase into smaller, more manageable chunks that can be loaded on demand. This not only speeds up initial load times, but also reduces the overall size of your app. Lazy loading: Another technique that can help improve performance is lazy loading. This approach delays loading certain components or modules until they are actually needed, which can significantly reduce the amount of tim...

Tips for Optimizing React Native Flatlist Performance There are a few ways to  optimise  the performance of a FlatList in React Native: Utilize the prop initialNumToRender: You can set the number of items that should be displayed when the list loads for the first time with this prop. The list's initial load time can be speed up by setting this to a lower value. Make use of the prop onEndReachedThreshold: The distance at which the onEndReached callback will be triggered can be specified using this prop. You can improve performance and reduce the number of times the callback is called by setting this to a larger value. Utilize the prop keyExtractor: You can specify a unique keyExtractor for each item in the list with this prop. When items are added, removed, or rearranged, React can update the list more quickly by providing a keyExtractor. Make use of the prop removeClippedSubviews: If this prop is set to true, it will only render the items that are currently visi...

How to Optimize React Performance with useMemo Brief on how useMemo works A memoized value is returned by the useMemo Hook in React. Memoization is similar to saving a value from being recalculated by caching it. The only time the useMemo Hook runs is when one of its dependencies changes. This can help us to improve it's performance  Usememo syntax useMemo(calculateValue, dependencies) How to improve Performance by using  useMemo Using the useMemo Hook, you can stop expensive, resource-intensive functions from running all the time. We have an expensive function that runs on every render in this example. There will be a delay in execution when you change the count or add a to-do. A function that performs poorly. Every render calls the expensiveOperation function: import { useState } from "react"; import ReactDOM from "react-dom/client"; const App = () => {   const [count, setCount] = useState(0);   const [todos, setTodos] = useState([]);   const calculat...