JSFiddle - React, Tailwind, and code Playground
HTML
<input type="text" name="result" id="result" size="25" />
<input type="button" id="btnOK" value="OK" />
<div id="output">Here goes your text after OK</div>JavaScript
document.getElementById("btnOK").addEventListener('click', function() {
document.getElementById("output").innerHTML = document.getElementById("result").value
})