REACT ⚛️: If a function component should always render the same way given the same props, what is a simple performance optimization available for it?

• Wrap it in the React.memo higher-order component.
• Implement the useReducer Hook.
• Implement the useMemo Hook.
• Implement the shouldComponentUpdate lifecycle method.

Answer:

Wrap it in the React.memo higher-order component.

If a function component always renders the same way given the same props, you can use the React.memo higher-order component to optimize its performance.

Here's an example of how you can use the React.memo hook to optimize a function component in React:

In this example, we're using the React.memo hook to wrap the MyComponent function component. This will cause React to only re-render the component if its props have changed. If the props remain the same, the component will not be re-rendered, improving performance.

You can see the performance improvement by looking at the console logs, in this example, we have added a console.log statement to show when the component is being re-rendered.