Textarea2

Textarea2

by Nibin George

HTML

<textarea id="moo" rows="5" cols="50"></textarea>

JavaScript

$('#moo').on('keydown',function(){
  var stringLength = document.getElementById("moo").value.length;
var count = Math.ceil( stringLength / document.getElementById("moo").cols );
 if(count >=10){
     $(this).css('overflow','scroll');
 }else if(count >=5){
     $(this).attr('rows', '10');
 }
});