从触发事件的元素返回属性id [英] Return the attribute id from the element that triggerd the event

问题描述

我有一个元素，这个元素通过以下代码调用函数calcTotal：

I have an element, this element calls the function calcTotal via the following code:

$('.pause').change(function(e) {
    window.alert("pause changed");
    calcTotal(e);

calcTotal（e）的代码如下：

The code of calcTotal(e) is as follows:

function calcTotal(event)
{   alert('calcTotal called');
    var myId = event.currentTarget.attr('id');

    myId = myId.replace(/[^0-9]/g, '');

    var timeRegex = /^[0-9]{1,2}:[0-9]{2}$/;

    if($('#start'+myId).val().match(timeRegex) && $('#end'+myId).val().match(timeRegex) && $('#pause'+myId).val().match(timeRegex))
    {
        var minutes = 0;

        var n = $('#end'+myId).val().split(':');
        minutes = parseInt(n[0])*60 + parseInt(n[1]);

        var n = $('#start'+myId).val().split(':');
        minutes -= parseInt(n[0])*60 + parseInt(n[1]);

        var n = $('#pause'+myId).val().split(':');
        minutes -= parseInt(n[0])*60 + parseInt(n[1]);

        var hours = Math.floor(minutes/60);
        minutes = minutes % 60;
        alert(hours + ':' + minutes);
        $('#total' + myId).val(hours + ':' + minutes);
    }
    else
    {       
        $('#total' + myId).val('00:00');
    }

}   

它不起作用我已经检查过了，当我使用firebug进行调试时，它说如下：

It doesn't work as I had exceptected and when I debug with firebug it says the following:

TypeError: event.currentTarget.attr is not a function
var myId = event.currentTarget.attr('id');  

我想在myId中存储元素的id。
我该怎么做？

I would like to store the id of the element in myId. How would I do this?

推荐答案

event.currentTarget 不是jQuery对象，它是一个DOM节点。

event.currentTarget is not a jQuery object, it's a DOM node.

var myIf = event.currentTarget.id;

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