jQuery addClass example

Change class name on click in jQuery

by exe1

HTML

<textarea id="dump" rows="4" cols="50"></textarea>

<div id="out">

</div>

CSS

body {
  background: #20262E;
  padding: 20px;
  font-family: Helvetica;
}

JavaScript

// find elements
function actOnEachLine(textarea) {
    var lines = $(textarea).text().split("\n");
    var newLines, i;
    alert(lines.length)
}

var textarea = document.getElementById("dump");
$(textarea).on('input', function(e){ 
	actOnEachLine(this);
});