<span class="count">0</span>
<textarea name="textarea" rows="10" cols="30"></textarea>
$('textarea').bind('keydown keyup keypress change',function(){
	var thisValueLength = $(this).val().length;
	$('.count').html(thisValueLength);
});

External CSS

This Pen doesn't use any external CSS resources.

External JavaScript

  1. https://cdnjs.cloudflare.com/ajax/libs/jquery/2.1.3/jquery.min.js