JSFiddle - React, Tailwind, and code Playground

HTML

<textarea id="myText" rows="5" columns="50">Hello World</textarea> <input type="button" value="Go" id="go">
<div>Raw: <span id="msg0"></span></div> 
<div>Returns stripped: <span id="msg1"></span></div>
<div>All White space stripped: <span id="msg2"></span></div>

CSS

span { font-weight:bold; color:red; }

JavaScript

function stripWhiteSpace(str) {
    return str.replace(/\s/g, '');
}

function stripReturns(str) {
    return str.replace(/[\n\r]/g, '');
}

$("#go").on('click', function() {
    var str = $("#myText").val();
    $("#msg0").html(str.length);
    $("#msg1").html(stripReturns(str).length);
    $("#msg2").html(stripWhiteSpace(str).length); 
}).click();