如何查找是否在javascript中按下了Enter键

Question

Sample Code that I'm using:

e.keyCode == 13 if (e.which==13) { e.preventDefault(); }

Is any idea apart from this?

Answer 1

try this

var variablename= (e.keyCode ? e.keyCode : e.which);
     if(code == 13) { //keycode of Enter key
       alert('enter key pressed');
     }

if you are using jquery

$('input[type=text]').on('keyup', function(e) {
    if (e.which == 13) {
        e.preventDefault();
    }
});