jquery中判断是否按下回车键

 1 $(‘#someTextBox‘).keypress(function(event){
 2     var keycode = (event.keyCode ? event.keyCode : event.which);
 3     if(keycode == ‘13‘){
 4         alert(‘You pressed a "enter" key in textbox‘);  
 5     }
 6 });
 7 
 8 $(document).keypress(function(event){
 9     var keycode = (event.keyCode ? event.keyCode : event.which);
10     if(keycode == ‘13‘){
11         alert(‘You pressed a "enter" key in somewhere‘);    
12     }
13 });