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useRef in reactjs

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Imran Khan answered on March 29, 2020 Popularity 9/10 Helpfulness 1/10

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useRef in reactjs

Comment

import { useRef } from 'react';

export default function Counter() {
  let ref = useRef(0);

  function handleClick() {
    ref.current = ref.current + 1;
    alert('You clicked ' + ref.current + ' times!');
  }

  return (
    <button onClick={handleClick}>
      Click me!
    </button>
  );
}

Popularity 9/10 Helpfulness 1/10 Language javascript

Source: Grepper

Tags: javascript reactjs use-ref

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Contributed on Jun 13 2023

Imran Khan

0 Answers Avg Quality 2/10

Closely Related Answers

useRef

Comment

/*
	A common use case is to access a child imperatively: 
*/

function TextInputWithFocusButton() {
  const inputEl = useRef(null);
  const onButtonClick = () => {
    // `current` points to the mounted text input element
    inputEl.current.focus();
  };
  return (
    <>
      <input ref={inputEl} type="text" />
      <button onClick={onButtonClick}>Focus the input</button>
    </>
  );
}

Popularity 10/10 Helpfulness 5/10 Language javascript

Source: reactjs.org

Tags: javascript j

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Contributed on Mar 29 2020

siberi

0 Answers Avg Quality 2/10

useref

Comment

import { useRef } from "react";

function TextInputWithFocusButton() {
  const inputEl = useRef(null);
  
  const onButtonClick = () => {
    // `current` points to the mounted text input element
    inputEl.current.focus();
  };
  
  return (
    <>
      <input ref={inputEl} type="text" />
      <button onClick={onButtonClick}>Focus the input</button>
    </>
  );
}

Popularity 10/10 Helpfulness 4/10 Language javascript

Source: reactjs.org

Tags: javascript j

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Contributed on Jan 03 2022

Inquisitive Iguana

0 Answers Avg Quality 2/10

useRef() in react

Comment

function TextInputWithFocusButton() {
  const inputEl = useRef(null);
  const onButtonClick = () => {
    // `current` points to the mounted text input element
    inputEl.current.focus();
  };
  return (
    <>
      <input ref={inputEl} type="text" />
      <button onClick={onButtonClick}>Focus the input</button>
    </>
  );
}

Popularity 10/10 Helpfulness 4/10 Language javascript

Source: reactjs.org

Tags: javascript j

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Contributed on Jun 06 2020

Salo Hopeless

0 Answers Avg Quality 2/10

useref

Comment

function TextInputWithFocusButton() {
 const inputEl = useRef(null);
 const onButtonClick = () => {
    inputEl.current.focus();
  };
return (
    <>
      <input ref={inputEl} type="text" />
      <button onClick={onButtonClick}>Focus</button>
    </>
  );
}

Popularity 10/10 Helpfulness 3/10 Language javascript

Source: Grepper

Tags: javascript j

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Contributed on Sep 23 2022

Olexxandr_S

0 Answers Avg Quality 2/10

useref react

Comment

import React, { useState, useRef, useEffect } from 'react'
import { render } from 'react-dom'

function App() {
  const intervalRef = useRef()
  const [count, setCount] = useState(0)

  useEffect(() => {
    intervalRef.current = setInterval(() => setCount(count => count + 1), 1000)

    return () => {
      clearInterval(intervalRef.current)
    }
  }, [])

  return (
    <>
      <div style={{ fontSize: 120 }}>{count}</div>
      <button
        onClick={() => {
          clearInterval(intervalRef.current)
        }}
      >
        Stop
      </button>
    </>
  )
}

render(<App />, document.querySelector('#app'))

Popularity 10/10 Helpfulness 3/10 Language javascript

Source: www.react.express

Tags: hook

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Contributed on Nov 08 2022

Mehedi Islam Ripon

0 Answers Avg Quality 2/10

useRef

Comment

/**
 * Accessing DOM elements
 *
 * Another useful application of the useRef() hook is to access DOM elements.
 * This is performed in 3 steps:
 * 
 * - Define the reference to access the element const elementRef = useRef();
 * - Assign the reference to ref attribute of the element: <div ref={elementRef}></div>;
 * - After mounting, elementRef.current points to the DOM element.
 */

import { useRef, useEffect } from 'react';
function AccessingElement() {
  const elementRef = useRef();
   useEffect(() => {
    const divElement = elementRef.current;
    console.log(divElement); // logs <div>I'm an element</div>
  }, []);
  return (
    <div ref={elementRef}>
      I'm an element
    </div>
  );
}

Popularity 10/10 Helpfulness 3/10 Language javascript

Source: dmitripavlutin.com

Tags: javascript j

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Contributed on Oct 03 2022

Strange Squirrel

0 Answers Avg Quality 2/10

useref in react

Comment

import { useRef } from 'react';

function LogButtonClicks() {
  const countRef = useRef(0);  
  const handle = () => {
    countRef.current++;    console.log(`Clicked ${countRef.current} times`);
  };

  console.log('I rendered!');

  return <button onClick={handle}>Click me</button>;
}

Popularity 10/10 Helpfulness 2/10 Language javascript

Source: dmitripavlutin.com

Tags: javascript j

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Contributed on Aug 02 2021

Friendly Fly

0 Answers Avg Quality 2/10

useref

Comment

  const inputEl = useRef(null);

Popularity 10/10 Helpfulness 2/10 Language javascript

Source: Grepper

Tags: javascript j

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Contributed on May 04 2021

Elegant Elephant

0 Answers Avg Quality 2/10

useref react class component

Comment

class CustomTextInput extends React.Component {
  constructor(props) {
    super(props);
    // create a ref to store the textInput DOM element
    this.textInput = React.createRef();
    this.focusTextInput = this.focusTextInput.bind(this);
  }

  focusTextInput() {
    // Explicitly focus the text input using the raw DOM API
    // Note: we're accessing "current" to get the DOM node
    this.textInput.current.focus();
  }

  render() {
    // tell React that we want to associate the <input> ref
    // with the `textInput` that we created in the constructor
    return (
      <div>
        <input
          type="text"
          ref={this.textInput} />
        <input
          type="button"
          value="Focus the text input"
          onClick={this.focusTextInput}
        />
      </div>
    );
  }
}

Popularity 10/10 Helpfulness 2/10 Language javascript

Source: reactjs.org

Tags: class clas

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Contributed on Jun 10 2022

Dev Mahir

0 Answers Avg Quality 2/10

what is useref in react

Comment

useRef is an kind of alternative to useState hook , with useRef you can get an reference to  an element and than use the DOM/JS properties to modify it .
You can even call useRef as an tool which is used to apply all the DOM properties as you were doing in Javascript before coming to React.
If you use useRef than this  apparoch is called un-controlled components.

Popularity 10/10 Helpfulness 2/10 Language javascript

Source: Grepper

Tags: javascript j

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Contributed on Feb 27 2022

Dull Dingo

0 Answers Avg Quality 2/10

useRef in reactjs

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