[Solved] Cannot invoke an object which is possibly ‘undefined’

I am trying to use Props on my button’s Onclick but I am facing the following error: Cannot invoke an object which is possibly ‘undefined’ in ReactJs. In this Exerror article, We are going to learn about How to reproduce this error and we will discuss All Possible Solutions Let’s Get Started with This Article.

How Cannot invoke an object which is possibly ‘undefined’ Error Occurs?

I am trying to use Props on my button’s Onclick but I am facing the following error.

Cannot invoke an object which is possibly 'undefined'

So here I am writing all the possible solutions that I have tried to resolve this error.

How To Solve Cannot invoke an object which is possibly ‘undefined’ Error?

Solution 1: Make your prop of function optional with ? operator

Here Error is Occurs Because You are passing Props to Button’s OnClick and when we try to invoke something which is undefined then this error will occur So All You need to do is Just make this function to Optional.

I Am Passing Props to my Button Onclick So I will make It Optional And then My error will be Resolved.

type MyButtonProps = {
  onClick?: () => void;
};

function UpVoteButton(props: MyButtonProps) {
  return <button onClick={() => props.onClick?.()}>UpVote</button>;
}

I just Set onClick={() => props.onClick?.() and My error is solved. Here By using ? when we click on the button and if the function is undefined or null then it will not call that function. So Making the function to optional will resolve this error.

Conclusion

It’s all About this error. I hope We Have solved Your error. Comment below Your thoughts and your queries. Also, Comment below which solution worked for you?

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