To pass a useRef
as a parameter to a custom hook, you can simply include it as an argument when defining the custom hook. The custom hook will then have access to the useRef
and can use it just like any other variable.
Here's an example of how you can achieve this:
javascriptimport { useEffect, useRef } from 'react';
// Custom hook that uses the provided useRef
const useCustomHook = (ref) => {
useEffect(() => {
// Access the ref and perform some action
if (ref.current) {
// Do something with the ref.current
}
}, [ref]);
};
// Component that uses the custom hook
const MyComponent = () => {
const myRef = useRef(null);
// Call the custom hook and pass the useRef as a parameter
useCustomHook(myRef);
return (
<div ref={myRef}>
{/* Other content */}
</div>
);
};
export default MyComponent;
In this example, we have a custom hook called useCustomHook
that takes a ref
parameter. Inside the custom hook, we use useEffect
to perform some action whenever the ref
changes. The ref.current
value is accessed inside the useCustomHook
hook and used for the desired logic.
In the MyComponent
, we create a useRef
called myRef
. Then, we pass myRef
to the useCustomHook
hook as a parameter. This allows useCustomHook
to interact with myRef
and perform its logic based on the current value of the ref.current
.
Remember that you can use this pattern to pass any type of variable or value as a parameter to a custom hook. Whether it's a useRef
, a state variable, or any other data, you can define your custom hook to accept the appropriate arguments and use them within the hook logic.