JSFiddle - React, Tailwind, and code Playground

HTML

<input type="text" id="fillMe">
<div id="result"></div>

JavaScript

$(document).ready(function () {
        var timer;
        $('#fillMe').keypress(function () {
            clearTimeout(timer);
            timer = setTimeout(function () {
                //replace this with your ajax call
                var content = $('#fillMe').val();
                $('#result').text('You will only see this if the user stopped typing: ' + content);
            }, 1000); // waits 1s before getting executed
        });
    });