how to detect if a key is pressed jquery code example

Example 1: enter event in jquery

$('#textbox').keypress(function(event){
	var keycode = (event.keyCode ? event.keyCode : event.which);
	if(keycode == '13'){
		alert('You pressed a "enter" key in textbox');
	}
});

Example 2: check if enter key is pressed jquery

$(document).on('keypress',function(e) {
    if(e.which == 13) {
        alert('You pressed enter!');
    }
});