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Localstorage in React.js - Get Projects Help

When user logged in a website and leave the website without logging out , when user come in that website again user is logged in already. This is only possible with the help of localstorage. LocalStorage is a web storage object to store the data on the user’s computer locally, which means the stored data is saved across browser sessions and the data stored has no expiration time. We can set ,retrieve and remove data in localstorage

.

Save data in localStorage

import React, { useState } from 'react';

const App = () => {

   const [name, setName] = useState('');
   const [pwd, setPwd] = useState('');

   const handle = () => {
      localStorage.setItem('Name', name);
      localStorage.setItem('Password', pwd);
   };
return (
      <div className="App">
         <h1>Name of the user:</h1>
         <input
            placeholder="Name"
            value={name}
            onChange={(e) => setName(e.target.value)}
         />
         <h1>Password of the user:</h1>
         <input
            type="password"
            placeholder="Password"
            value={pwd}
            onChange={(e) => setPwd(e.target.value)}
         />
         <div>
            <button onClick={handle}>Done</button>
         </div>
</div>
)

No library is needed to use Localstorage . Name and password fields are created and after filling the input field localStorage.setItem () is used to store data in localStorage.


Get data from localstorage

import React, { useState } from 'react';

const App = () => {
return (
      <div className="App">
         
         {localStorage.getItem('Name') && (
            <div>
               Name: <p>{localStorage.getItem('Name')}</p>
            </div>
         )}
         {localStorage.getItem('Password') && (
            <div>
               Password: <p>{localStorage.getItem('Password')}</p>
            </div>
         )}
         <div>
            <button onClick={remove}>Remove</button>
         </div>
      </div>
   );
};
export default App;

localStorage.getItem () is used to get data from localStorage.


Remove data from localStorage

import React, { useState } from 'react';

const App = () => {
const remove = () => {
      localStorage.removeItem('Name');
      localStorage.removeItem('Password');
   };
return (
      <div className="App">
        
        
         <div>
            <button onClick={remove}>Remove</button>
         </div>
      </div>
   );
};
export default App;

When remove button is clicked then remove function is called and to remove data from localStorage.removeItem() then data will be removed.



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1 Comment


George Harry
George Harry
Feb 15, 2022

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