一次将事件附加到多个元素 [英] Attaching an event to multiple elements at one go

问题描述

说我有以下几点：

  var a = $（＃a）; 
 var b = $（＃b）; 
 
 //我想做以下一些事情：
 
 $（a，b）.click（function（）{/ * * /}）; //< =不工作
 
 //而不是分别将处理程序附加到每个对象
  

显然上述不起作用，因为在 $ 函数中，第二个参数是 context ，而不是另一个元素。

那么如何一次性地将事件附加到这两个元素？

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[更新] / strong>

peirix 发布了一个有趣的片段，他将元素与& 符号相结合;但是我注意到这一点：

  $（a& b）.click（function（）{/ * * /}） ; //< = works（事件附加到两个）
 
 $（a& b）.attr（disabled，true）; //< =不工作（没有发生）
  

从上面可以看到，显然，与& 符号的组合仅在附加事件时有效？

解决方案

jQuery add method 是您想要的：

通过给定的表达式匹配更多的元素到匹配元素集

  var a = $（＃a）; 
 var b = $（＃b）; 
 var combined = a.add（b）
  

Say I have the following :

var a = $("#a");
var b = $("#b");

//I want to do something as such as the following : 

$(a,b).click(function () {/* */}); // <= does not work

//instead of attaching the handler to each one separately

Obviously the above does not work because in the $ function, the second argument is the context, not another element.

So how can I attach the event to both the elements at one go ?

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[Update]

peirix posted an interesting snippet in which he combines elements with the & sign; But something I noticed this :

$(a & b).click(function () { /* */ }); // <= works (event is attached to both)

$(a & b).attr("disabled", true); // <= doesn't work (nothing happens)

From what you can see above, apparently, the combination with the & sign works only when attaching events...?

解决方案

The jQuery add method is what you want:

Adds more elements, matched by the given expression, to the set of matched elements

var a = $("#a");
var b = $("#b");
var combined = a.add(b)

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