/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 vote254 views1 answer
How to Submit Forms and Save Data with React.js
Javascript React
0 vote254 views1 answer
Telerik grid data automatically scroll to particular record in react
Javascript React
0 vote250 views1 answer
React locomotive-scroll
Javascript React
0 vote231 views1 answer
Npm react animation
Javascript React
1 vote228 views1 answer
React native generate stylesheet with function
Javascript React
0 vote251 views1 answer
React native update helper
Javascript React
0 vote258 views1 answer
Scrollreveal react tutoriel
Javascript React
63 votes217 views6 answers
React router install
Javascript React
0 vote256 views1 answer
Can you wrap redux provider within react.strictmode
Javascript React
2 votes245 views1 answer
React select with react hook form cotroller
Javascript React