Clear State In React Hooks

November 21, 2022

Clear State In React Hooks

How To Clear the State In React Hooks With Code Examples?

We will examine several different instances of how to solve the How To Clear the State In React Hooks problem.

const { useState } = React;
function signupUser() {
  return new Promise(resolve => {
    setTimeout(resolve, 1000);  });
}
const initialState = {
  username: "",
  email: "",
  password: "",
  passwordConfirmation: ""
};
const Signup = () => {
  const [
    { username, email, password, passwordConfirmation },
    setState
  ] = useState(initialState);
  const clearState = () => {
    setState({ ...initialState });
  };
  const onChange = e => {
    const { name, value } = e.target;
    setState(prevState => ({ ...prevState, [name]: value }));
  };
  const handleSubmit = e => {
    e.preventDefault();
    signupUser().then(clearState);
  };
  return (
    <form onSubmit={handleSubmit}>
      <div>
        <label>
          Username:
          <input value={username} name="username" onChange={onChange} />
        </label>
      </div>
      <div>
        <label>
          Email:
          <input value={email} name="email" onChange={onChange} />
        </label>
      </div>
      <div>
        <label>
          Password:
          <input
            value={password}
            name="password"
            type="password"
            onChange={onChange}
          />
        </label>
      </div>
      <div>
        <label>
          Confirm Password:
          <input
            value={passwordConfirmation}
            name="passwordConfirmation"
            type="password"
            onChange={onChange}
          />
        </label>
      </div>
      <button>Submit</button>
    </form>
  );
};
ReactDOM.render(<Signup />, document.getElementById("root"));

How To Clear the State In React Hooks issue was overcome by employing a variety of different examples.

Reset the state in React hook?

When you manage the react state using the useState react hook, all you have to do is call your setState function passing it the initial state in react component .To reset a react component to it’s initial state with the useReducer hook:

Store the initial state in a variable.
Handle a react RESET action type in your reducer.
Dispatch an action with type of RESET .

Clear the state in React?

Resetting react States to beginning State and Then we call react useState in web App to create the object state. Next, we can create the clearState() function to reset the react state by calling the setState state setter function() with a copy of the initial State . Making a copy let’s React know that it has to update the react state and re-render.05-Feb-2021.

Clear form React hooks?

Step 1: Build New React App Project.
Step 2: Install React Hook Form Package.
Step 3: Install Yup Package.
Step 3: Build React Hook Form Component.
Step 4: Update App Js File.
Step 5: Run Development Server.

Manage state in React with hooks?

Using React Hooks to share state between components And, finally, our root component. This is going to hold the react store and pass the what are required data and the dispatch function down to the components that need them. This will allow the children react components to read from and update the store as required.11-May-2021.

UseEffect cleanup?

The React hook comes with a cleanup function(), which you might not always need, and but it can come in handy. To invoke the cleanup function() we can simply add a return function() like so: useEffect(() => { // Your effect return () => { // Cleanup }; }, []); The cleanup function() can prevent memory leaks and remove unwanted things.20-Mar-2022

Delete a state in Redux?

Centralizing the Resetting of the react State Usually, and you would use the react combineReducers function() to create a single root reducer for your react redux store: import { combineReducers } from ‘redux’; const usersDefaultState = []; const users = (state = usersDefaultState, { type, payload }) => //02-Aug-2021

Clear input field React?

Store the rinput’s value in a react state variable.
When a certain event occurs, set the react state variable to an empty string.
For react uncontrolled components, set the ref’s value to an empty string, e.g. ref. current. Value = ”; .

Refresh a form in React?

import React from 'react';
 function App()
 { function refreshPage() { window. location. reload(false); } 
return ( 
<div> <button onClick={refreshPage}>Click to reload!<button></div>)

Reset the state of a child component React?

In the react child function component, and you add a react clearState function(). You pass the clearState function() from the react child component to the parent by using one of the props function. In the resetForm of react parent component, call the clearState function() to clear child state.