React is a library for creating user interfaces. It has a large library of libraries that work with it. In addition, we can use it to improve existing applications.

In this article, we will learn about how to use document.getelementbyid in react. Specifically in this situation “getElementById in React- How to use document.getelementbyid in react?“. Let’s start now!

What is document.getelementbyid method in react?

The Element object representing the element whose id property matches the given string is returned by the Document function getElementById(). Element IDs are a practical approach to easily access a particular element because, if supplied, they must be unique.

How to use document.getelementbyid in react?

Solution 1: Use the document.getElementById() method through a ref

Let’s follow two steps to get an element by ID in React:

1. Set the element with the ref prop.

      2. To access the element in the useEffect hook, use the current property.

Look at the following example to further understand about this method:

import {useRef, useEffect} from 'react';

export default function App() {
const ref = useRef(null);

useEffect(() => {
// 👇️ use document.getElementById()
const el = document.getElementById('my-element');
console.log(el);

// 👇️ (better) use a ref
const el2 = ref.current;
console.log(el2);
}, []);

return (
<div>
<h2 ref={ref} id="my-element">
Some content here
</h2>
</div>
);
}

<h2 id=''my-element''>Some content here</h2>

<h2 id=''my-element''>Some content here</h2>

Solution 2: An initial value may be given as an argument to the useRef() hook

An initial value may be given as an argument to the useRef() hook. The hook gives back a mutable ref object with the provided argument initialized in its .current property. Keep in mind that in order to access the h2 element on which you set the ref prop, you must first access the current property on the ref object. React sets the .current property of the ref object to the associated DOM node when you supply a ref prop to an element, for example, div ref=myRef />.

When you give the useEffect hook an empty dependencies array, it will only be activated when the component mounts.

useEffect(() => {
// 👇️ use document.getElementById()
const el = document.getElementById('my-element');
console.log(el);

// 👇️ (better) use a ref
const el2 = ref.current;
console.log(el2);
}, []);

Conclusion

To sum up, the “getElementById in React – How to use document.getelementbyid in react?” problem is quite confusing for newbies. To be able to solve problems quickly, you need to have a better understanding of the DOM and the functions involved. Hope you get the problem resolved soon. If there are any difficulties, do not hesitate to contact us immediately for answers.

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