How to detect a textbox's content has changed

Question

I want to detect whenever a textbox\'s content has changed. I can use the keyup method, but that will also detect keystrokes which do not generate letters, like the arrow ke

Answer 1

document.getElementById('txtrate' + rowCount).onchange = function () {            
       // your logic
};

This one works fine but triggers the event on click too which is not good. my system went into loop. while

$('#txtrate'+rowCount).bind('input', function() {
        //your logic
} );

works perfectly in my scenario. it only works when value is changed. instead of $ sign one can use document.getElementById too