检查事件是否由人触发 [英] Check if event is triggered by a human

问题描述

我有一个附加到事件的处理程序，我希望它仅在由人触发而不是由trigger()方法触发时执行.我该如何区分?

I have a handler attached to an event and I would like it to execute only if it is triggered by a human, and not by a trigger() method. How do I tell the difference?

例如，

$('.checkbox').change(function(e){
  if (e.isHuman())
  {
    alert ('human');
  }
});

$('.checkbox').trigger('change'); //doesn't alert

推荐答案

您可以检查e.originalEvent:如果已定义，则单击是人为的:

You can check e.originalEvent: if it's defined the click is human:

看看小提琴 http://jsfiddle.net/Uf8Wv/

$('.checkbox').change(function(e){
  if (e.originalEvent !== undefined)
  {
    alert ('human');
  }
});

我在小提琴中的例子:

<input type='checkbox' id='try' >try
<button id='click'>Click</button>

$("#try").click(function(event) {
    if (event.originalEvent === undefined) {
        alert('not human')
    } else {
        alert(' human');
    }


});

$('#click').click(function(event) {
    $("#try").click();
});

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