我的 mouseup 代码有什么问题？

Question

Trying to detect left click vs right click (without using jQuery!) and I have the following code

Javascript:

function cclick(e) {
   if (e.button == 1) {alert("hgbdygwea");}
   else {
      alert(e.button);
   }
}

HTML:

<a onmouseup="cclick()" ...> <img .../> </a> <!-- also tried cclick instead of cclick() -->

using inte.net explorer 9

Answer 1

You need to pass the event object to your function:

onmouseup="cclick(event);"

Answer 2

Quirksmode has a good write up on the subject of " Which mouse button has been clicked? " and his code works over the top of yours.

Answer 3

Following is another approach

function cclick() {
   var e = window.event;
   if (e.button == 1) {alert("hgbdygwea");}
   else {
      alert(e.button);
   }
}

And call the function as below without passing the event .

<a onmouseup="cclick()" ...> <img .../> </a>

Answer 4

I think this code should work for you. e.button is not valid for all browsers (and I cleaned up the code).

function cclick(e) {
    "use strict";
    e || window.event;
    if (e.which) {
        alert((e.which === 1) ? "hgbdygwea" : e.which);
    } else {
        alert((e.button === 1) ? "hgbdygwea" : e.button);
    }
}

<a onmouseup="cclick(event)" ...> <img .../> </a> <!-- also tried cclick instead of cclick() -->