Breaking News: Grepper is joining You.com. Read the official announcement!

uncontrolled component react

Add Answer

YOU.com answered on September 10, 2021 Popularity 9/10 Helpfulness 1/10

answer uncontrolled component react

related controlled and uncontrolled components

related controlled and uncontrolled components in react example

related uncontrolled form react

uncontrolled component react

Comment

import React, { useRef } from 'react';

function UncontrolledInput() {
  const inputRef = useRef(null);

  const handleSubmit = (e) => {
    e.preventDefault();
    console.log(inputRef.current.value);
  }

  return (
    <form onSubmit={handleSubmit}>
      <input type="text" ref={inputRef} />
      <button type="submit">Submit</button>
    </form>
  );
}

export default UncontrolledInput;

Popularity 9/10 Helpfulness 1/10 Language javascript

Source: Grepper

Link to this answer
Share Copy Link

Contributed on Sep 12 2023

YOU.com

0 Answers Avg Quality 2/10

Closely Related Answers

controlled and uncontrolled components

Comment

An uncontrolled component is a component that renders form elements, 
where the form element's data is handled by the DOM (default DOM behavior). 
To access the input's DOM node and extract its value you can use a ref.

Example - Uncontrolled component:
const { useRef } from 'react';

function Example () {
  const inputRef = useRef(null);
  return <input type="text" defaultValue="bar" ref={inputRef} />
}

  
In a controlled component, the form element's data is handled by the 
React component (not DOM) and kept in the component's state. 
A controlled component basically overrides the default behavior 
of the HTML form elements.

We create a controlled component by connecting the form element 
(<input>, <textarea> or <select>) to the state by setting its attribute 
value and the event onChange.

Example - Controlled Component:
const { useState } from 'react';

function Controlled () {
  const [email, setEmail] = useState();

  const handleInput = (e) => setEmail(e.target.value);


  return <input type="text" value={email} onChange={handleInput} />;
}

Popularity 10/10 Helpfulness 4/10 Language javascript

Source: stackoverflow.com

Tags: javascript j

Link to this answer
Share Copy Link

Contributed on Feb 07 2022

Excited Earthworm

0 Answers Avg Quality 2/10

controlled and uncontrolled components in react example

Comment

// controlled
- In a controlled component, form data is handled by a React component.

// uncontrolled
- The alternative is uncontrolled components, where form data is handled
by the DOM itself. To write an uncontrolled component, instead of
writing an event handler for every state update, you can use a ref 
to get form values from the DOM.

Popularity 10/10 Helpfulness 3/10 Language whatever

Source: Grepper

Tags: whatever whateve

Link to this answer
Share Copy Link

Contributed on Sep 10 2021

Abhishek

0 Answers Avg Quality 2/10

uncontrolled form react

Comment

const [requestParams, setRequestParams] = useState({
  location: "",
  animal: "",
  breed: "",
});

const results = useQuery(["search", requestParams], fetchSearch);
const pets = results?.data?.pets ?? [];

<form onSubmit=(e=>{

// The form submit function body
e.preventDefault();
const formData = new FormData(e.target);
const obj = {
  animal: formData.get("animal") ?? "",
  breed: formData.get("breed") ?? "",
  location: formData.get("location") ?? "",
};
setRequestParams(obj);
}

Popularity 9/10 Helpfulness 3/10 Language javascript

Source: Grepper

Tags: javascript j

Link to this answer
Share Copy Link

Contributed on Jan 12 2023

M Hassan khan

0 Answers Avg Quality 2/10

uncontrolled component react

Contents

More Related Answers

uncontrolled component react

Closely Related Answers

controlled and uncontrolled components

controlled and uncontrolled components in react example

uncontrolled form react

Grepper

Documentation

Social

Legal

Contact

Oops, You will need to install Grepper and log-in to perform this action.