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function components cannot have string refs.

Imaginathan answered on July 3, 2023 Popularity 5/10 Helpfulness 2/10

answer function components cannot have string refs.

function components cannot have string refs.

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In React, functional components cannot have string refs. The use of string refs was a feature available in older versions of React but has since been deprecated.

In React, there are two primary ways to create and use refs:

1. Callback Refs: You can define a callback function and pass it as a ref to an element or component. When the component mounts or updates, React will call the callback function with the underlying DOM element as an argument.

Here's an example of using a callback ref in a functional component:


import React, { useRef } from 'react';

const MyComponent = () => {
  const myRef = useRef(null);

  // Access the DOM element using myRef.current

  return <div ref={myRef}>Hello, world!</div>;
};


2. CreateRef: You can use the `createRef` function from the React library to create a ref object. This ref object can then be attached to an element or component using the `ref` attribute.

Here's an example of using `createRef` in a functional component:


import React, { useRef } from 'react';

const MyComponent = () => {
  const myRef = useRef(null);

  // Access the DOM element using myRef.current

  return <div ref={myRef}>Hello, world!</div>;
};


Both methods allow you to access and manipulate the underlying DOM element associated with the ref. However, it's important to note that string refs are no longer supported in functional components.

Popularity 5/10 Helpfulness 2/10 Language javascript

Source: Grepper

Tags: components function javascript string

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Contributed on Jul 03 2023

Imaginathan

0 Answers Avg Quality 2/10

function components cannot have string refs.

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