How to fix the “error TS2533: Object is possibly ‘null’ or ‘undefined’” error with TypeScript?

Sometimes, we want to fix the “error TS2533: Object is possibly ‘null’ or ‘undefined’” error with TypeScript.

In this article, we’ll look at how to fix the “error TS2533: Object is possibly ‘null’ or ‘undefined’” error with TypeScript.

How to fix the “error TS2533: Object is possibly ‘null’ or ‘undefined’” error with TypeScript?

To fix the “error TS2533: Object is possibly ‘null’ or ‘undefined’” error with TypeScript, we can use the optional chaining operator.

For instance, we write

refToElement?.current?.focus();

to use the optional chaining ?. to get the value of the refToElement.current.focus method.

?. will return undefined if any of the properties in the chain are null or undefined instead of throwing an error.

Conclusion

To fix the “error TS2533: Object is possibly ‘null’ or ‘undefined’” error with TypeScript, we can use the optional chaining operator.