jQuery '.each' 并附加 '.click' 事件
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jQuery '.each' and attaching '.click' event
提问by hcc
I am not a programer but I enjoy building prototypes. All of my experience comes from actionScript2.
我不是程序员，但我喜欢构建原型。我所有的经验都来自于 actionScript2。
Here is my question. To simplify my code I would like to figure out how to attach '.click' events to div's that are already existing in the HTML body.
这是我的问题。为了简化我的代码，我想弄清楚如何将“.click”事件附加到 HTML 正文中已经存在的 div。
<body>
<div id="dog-selected">dog</div>
<div id="cat-selected">cat</div>
<div id="mouse-selected">mouse</div>
<div class="dog"><img></div>
<div class="cat"><img></div>
<div class="mouse"><img></div>
</body>
My (failed) strategy was:
1) make an array of objects:
我的（失败的）策略是：
1）制作一个对象数组：
var props = {
"dog": "false",
"cat": "true",
"mouse": "false"
};
2) iterate through the array with '.each' and augment each existing div with a '.click' event. Lastly, construct a local variable.
2) 使用 '.each' 遍历数组并使用 '.click' 事件扩充每个现有的 div。最后，构造一个局部变量。
here is a prototype:
这是一个原型：
$.each(props, function(key, value) {
$('#'+key+'-selected').click(function(){
var key = value;
});
});
回答by Neil.Allen
One solution you could use is to assign a more generalized class to any div you want the click event handler bound to.
您可以使用的一种解决方案是为您希望单击事件处理程序绑定到的任何 div 分配一个更通用的类。
For example:
例如：
HTML:
HTML：
<body>
<div id="dog" class="selected" data-selected="false">dog</div>
<div id="cat" class="selected" data-selected="true">cat</div>
<div id="mouse" class="selected" data-selected="false">mouse</div>
<div class="dog"><img/></div>
<div class="cat"><img/></div>
<div class="mouse"><img/></div>
</body>
JS:
JS：
$( ".selected" ).each(function(index) {
$(this).on("click", function(){
// For the boolean value
var boolKey = $(this).data('selected');
// For the mammal value
var mammalKey = $(this).attr('id');
});
});
