Count in maximum text size for textarea

Description

The following code shows how to count in maximum text size for textarea.

Example


<!DOCTYPE html>
<html>
<head>
<script type='text/javascript'
  src='http://code.jquery.com/jquery-1.9.1.js'></script>
<script type="text/javascript"
  src="http://code.jquery.com/mobile/1.3.0-beta.1/jquery.mobile-1.3.0-beta.1.js"></script>
<link rel="stylesheet" type="text/css"
  href="http://code.jquery.com/mobile/1.3.0-beta.1/jquery.mobile-1.3.0-beta.1.css">
<script type='text/javascript'>//<![CDATA[ 
$(function(){<!--  w  ww  . jav  a2  s.c  o  m-->
$("#topic").keyup(function(e) {
    var tam = $(this).val().length;
    if (tam <= 61700){
      $("#maxCarac").html(tam +" typed characters. The maximum allowed is 61700");
    } else {
      alert("You have reached the maximum text size.\nPlease break your text into more than one topic.");
      $("#topic").val($("#topic").substring(61700));
    }
  });
});//]]>  
</script>
</head>
<body>
  <div id="verTopico" class="oculto tipos">
    <label for="topico">Topic: <span style="font-style: italic;"
      id="maxCarac">0 typed characters. The maximum allowed is 61700</span></label>
    <textarea name="topic" id="topic" style="height: 15em !important;"></textarea>
  </div>
</body>
</html>

Click to view the demo





















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