Javascript 引用HTML元素
我想知道,如果某个元素可以被引用,那么,如果我对其中一个元素做了任何更改,它也会对另一个元素进行更改。比如说,Javascript 引用HTML元素,javascript,jquery,html,Javascript,Jquery,Html,我想知道,如果某个元素可以被引用,那么,如果我对其中一个元素做了任何更改,它也会对另一个元素进行更改。比如说, <div id="trigger" data-referencedID="meter voltmeter ammeter vmeter">Trigger</div> ... ... <div id="meter"> <!-- Its children goes here --> </div> ... ... <d
<div id="trigger" data-referencedID="meter voltmeter ammeter vmeter">Trigger</div>
...
...
<div id="meter">
<!-- Its children goes here -->
</div>
...
...
<div id="voltmeter">
<!-- Its children goes here -->
</div>
...
...
<div id="ammeter">
<!-- Its children goes here -->
</div>
...
...
<div id="vmeter">
<!-- Its children goes here -->
</div>
我可以这样做:
$("#trigger").click( function() {
var a = $(this).data("referenced").split(" ");
for(var i = 0; i < a.length; i++) {
$("#"+a).addClass("animated");
}
$(this).addClass("animated");
});
$(“#触发器”)。单击(函数(){
变量a=$(此).data(“引用”).split(“”);
对于(变量i=0;i
但它不好看,也不方便,而且我可以有更多的带有引用属性的主元素
如何在文档中轻松添加引用?您可以为所有引用的元素使用一个类,例如:
<div id="trigger" data-reference="reference_1">Trigger</div>
<div id="meter" class="reference_1"></div>
<div id="voltmeter" class="reference_1"></div>
倒过来怎么样?在仪表中添加指向触发器的类。通过这种方式,您可以添加任意数量的仪表,这些仪表与触发器有关:
<div id="trigger">Trigger</div>
...
...
<div id="meter" class="ref-trigger">
<!-- Its children goes here -->
</div>
...
...
<div id="voltmeter" class="ref-trigger">
<!-- Its children goes here -->
</div>
...
...
<div id="ammeter" class="ref-trigger">
<!-- Its children goes here -->
</div>
...
...
<div id="vmeter" class="ref-trigger">
<!-- Its children goes here -->
</div>
这怎么样?您可以在引用的元素上使用属性:
<div id="trigger">Trigger</div>
...
...
<div id="meter" data-reference="trigger">
<!-- Its children goes here -->
</div>
...
...
<div id="voltmeter" data-reference="trigger">
<!-- Its children goes here -->
</div>
...
...
<div id="ammeter" data-reference="trigger">
<!-- Its children goes here -->
</div>
...
...
<div id="vmeter" data-reference="trigger">
<!-- Its children goes here -->
</div>
查询的[data reference=trigger]部分匹配具有属性引用且值为trigger的所有元素。使用Knockout:@fatman I将查看它。谢谢;)似乎很有帮助。
参考
不是一个好方法。但是你可以用一个。
<div id="trigger">Trigger</div>
...
...
<div id="meter" class="ref-trigger">
<!-- Its children goes here -->
</div>
...
...
<div id="voltmeter" class="ref-trigger">
<!-- Its children goes here -->
</div>
...
...
<div id="ammeter" class="ref-trigger">
<!-- Its children goes here -->
</div>
...
...
<div id="vmeter" class="ref-trigger">
<!-- Its children goes here -->
</div>
$("#trigger").click( function() {
$('.ref-trigger').addClass("animated");
});
<div id="trigger">Trigger</div>
...
...
<div id="meter" data-reference="trigger">
<!-- Its children goes here -->
</div>
...
...
<div id="voltmeter" data-reference="trigger">
<!-- Its children goes here -->
</div>
...
...
<div id="ammeter" data-reference="trigger">
<!-- Its children goes here -->
</div>
...
...
<div id="vmeter" data-reference="trigger">
<!-- Its children goes here -->
</div>
$("#trigger").click( function() {
$("#trigger, [data-reference=trigger]").addClass("animated");
});