Keypress with JQuery code example

Example 1: jQuery Arrow Keys Binding Examples

<html>
<head>
<title>jQuery Arrow Keys | Bind Arrow Keys using jQuery</title>
<script type="text/javascript" src="js/jquery-1.8.2.min.js"></script>
</head>

<body>

Hit the arrows keys on your keyboard to see the alert!

<script type="text/javascript">

$(document).keydown(function(e){

	//e.which is set by jQuery for those browsers that do not normally support e.keyCode.
	var keyCode = e.keyCode || e.which;

    if (keyCode == 38) 
	{ 
       alert( "Up arrow key hit." );
       return false;
    }

    if (keyCode == 40) 
	{ 
       alert( "Down arrow key hit." );
       return false;
    }

    if (keyCode == 37) 
	{ 
       alert( "Left arrow key hit." );
       return false;
    }

    if (keyCode == 39) 
	{ 
       alert( "Right arrow key hit." );
       return false;
    }

});

</script> 
</body>
</html>

Example 2: how to call function on every keypress in jquery

$("#inputFoodChoice").keyup(function (e) {
                var code = (e.keyCode ? e.keyCode : e.which);
                if (code == 13) { //Enter keycode
                    e.preventDefault();
                    checkInputValue(e);
                }
});

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