I need to disable shift keypress event in my site by using JavaScript or any other method. Below is my code:
$(document).ready(function() { document.onkeydown = checkKeycode function checkKeycode(e) { var keycode; if (window.event) { keycode = window.event.keyCode; } else if (e) { keycode = e.which; } //alert(keycode); if (keycode == 16) { alert(keycode); return false; } } }); 
// bind an event listener to the keydown event on the window window.addEventListener('keydown', function (event) { // if the keyCode is 16 ( shift key was pressed ) if (event.keyCode === 16) { // prevent default behaviour event.preventDefault(); return false; } }); 
http://api.jquery.com/keypress/
In addition, modifier keys (such as Shift) trigger keydown events but not keypress events.
Try this
$('#target').keydown(function(event) { if (event.shiftKey) { event.preventDefault(); } } 
document.onkeydown = function (e) { var e = e || event; if (e.shiftKey === true) { return false; } }; 
You may try this:
jQuery(document).keydown(function(e){ if(e.which === 16) { e.preventDefault(); return; } console.log(e.which); }); See demo.
Use Firebug and check console output.
