The error “cannot read properties of null (reading ‘useref’)” occurs when you are trying to access a property called ‘useref’ on a null object. This happens when you are attempting to use the useRef hook from React without properly importing it or when the reference you are trying to access is null.
To resolve this issue, make sure you have imported the useRef hook from the ‘react’ package at the top of your file. You can do this by adding the following line:
import React, { useRef } from 'react';
Once you have imported the useRef hook, make sure you have declared the useRef variable correctly. Here is an example of how to use it:
const myRef = useRef(null);
In this example, we are initializing the useRef variable ‘myRef’ with a value of null. You can replace ‘null’ with any initial value you need.
Later in your code, when you try to access properties or methods on ‘myRef’, make sure you are checking if it is null before accessing them. You can do this with an ‘if’ statement or by using optional chaining, which is a new feature in JavaScript.
Here is an example of using optional chaining to access a property on ‘myRef’:
const value = myRef?.current?.value;
In this example, the ‘.current’ property of ‘myRef’ is accessed only if ‘myRef’ is not null. If ‘myRef’ is null, the value of ‘value’ will be undefined.