Understanding the Purpose of React.StrictMode

Introduction

React provides tools to help developers write better code and catch potential issues before they make it into production. One such tool is React.StrictMode. If you’ve worked with React, you might have noticed <React.StrictMode> wrapping components in the index.js or App.js file. But what exactly is its purpose, and how does it help developers? In this blog, we’ll explore the key features and benefits of React.StrictMode and why it's an essential part of modern React applications.

1. What is React.StrictMode?

React.StrictMode is a development-only tool introduced in React 16.3. It is a wrapper component that doesn’t render anything in the DOM. Instead, it performs extra checks and warnings for its child components to ensure they comply with modern React best practices.

Key Points:

• React.StrictMode does not affect the production build; it only works during development.
• It helps identify potential problems in an application by providing warnings and running checks.
• It wraps your components to enforce stricter coding practices.

Here’s an example of how it’s typically used:

import React from 'react';
import ReactDOM from…