/Javascript/React/What does useref do react

What does useref do react

UseRef

/*
	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>
    </>
  );
}

Source: reactjs.org

What does useref do react

const refContainer = useRef(initialValue);
//useRef returns a mutable ref object whose .current property is initialized to the passed argument (initialValue). 
//The returned object will persist for the full lifetime of the component.

Source: reactjs.org

UseRef() in 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>
    </>
  );
}

Source: reactjs.org

How to use useref hook in react

import React, { 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>
    </>
  );
}

Source: reactjs.org

Similar codes

0 vote310 views1 answer
Smooth scroll react
Javascript React
1 vote289 views1 answer
How to remove name in react navigation header
Javascript React
0 vote308 views1 answer
Reset reactive state vue 3
Javascript React
0 vote284 views1 answer
Render first index active tabs in reactjs
Javascript React
0 vote295 views1 answer
Como hacer un onpress en react native expo
Javascript React
0 vote303 views1 answer
Showing a custom toast function for react-toastify - Toast show
Javascript React
0 vote321 views1 answer
React interactions
Javascript React
1 vote282 views2 answers
React capitalize first letter
Javascript React
0 vote313 views1 answer
Reactjs ES6 class event listeners in jsx
Javascript React
1 vote355 views1 answer
React component key prop
Javascript React