JSFiddle - React, Tailwind, and code Playground

HTML

<div id="test" contenteditable="true">Hello world</div>

JavaScript

// get the text
var text = $('#test').text();

// set the item in localStorage
localStorage.setItem('test', text);

// bind text to 'blur' event for div
$('#test').on('blur', function(){
   
	// check the new text
  var newText = $(this).text();
	
	// overwrite the old text
  localStorage.setItem('test', newText);

	// test if it works
	alert( localStorage.getItem('test') );
  
})