[ ReactJs ]. Object Store in LocalStorage ( https://codesandbox.io/s/object-store-in-localstorage-2kfit?file=/src/App.js )

App.js

import React, { Component } from "react";

class Storage extends Component {
  setData = () => {
    let obj = { name: "Anmol", age: "24", email: "[email protected]" };
    localStorage.setItem("myData", JSON.stringify(obj));
  };

  getData = () => {
    let data = localStorage.getItem("myData");
    data = JSON.parse(data);
    console.log(data.name);
  };

  render() {
    return (
      <div>
        <button onClick={() => this.setState()}>Set Data</button>
        <button onClick={() => this.getData()}>Set Data</button>
      </div>
    );
  }
}

export default Storage;