How to Fix: ReactJS giving error Uncaught TypeError: Super expression must either be null or a function, not undefined
Error in ReactJS code due to undefined super expression.
📋 Table of Contents
To fix the 'Uncaught TypeError: Super expression must either be null or a function, not undefined' error in ReactJS, you need to ensure that your class components are extending from the React.Component class.
⚠️ Common Causes
- Missing or incorrect inheritance in class components.
✅ Best Solutions to Fix It
Method 1: Inheriting from React.Component
- Step 1: Ensure that your class components are extending from the React.Component class.
Method 2: Using ES6 Classes
- Step 1: Use the class keyword to define your React component class.
✨ Wrapping Up
By following these steps, you should be able to resolve the 'Uncaught TypeError: Super expression must either be null or a function, not undefined' error in your ReactJS application.
❓ Frequently Asked Questions
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