How do I fix a TypeError in my JavaScript code?

How do I fix a TypeError in my JavaScript code?

A TypeError usually occurs when you try to use a value in an inappropriate way. Can you share the specific error message?

The error says 'Cannot read property of undefined'.

This typically means you're trying to access a property on an object that doesn't exist. Check if the object is defined before accessing its properties.

I think the object is defined, but I'm still getting the error.

Make sure to log the object to the console right before the line that throws the error. This will help you see its value.

I found out that the object is indeed undefined. How can I prevent this error?

You can use optional chaining (?.) or a conditional check to ensure the object is defined before accessing its properties.