JSFiddle - React, Tailwind, and code Playground
by ryan nguyen
HTML
<form>
Price: <input type='text' id='frm_price' onkeyup="charPreview()">    <span id="frm_price_preview">This is where to show number as user is typing</span>
</form>
JavaScript
function charPreview(){
var x = document.getElementById("frm_price").value;
document.getElementById("frm_price_preview").innerHTML = x;
}