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三种方式,与狗一起对事件进行跟踪。 差别究竟是什么?
原标题:Three ways of ataching to events with dojo. What exactly is the difference?

这里的差别是否只是各种牙齿糖,还是有理由对另一类糖采取某种做法? 它们都做了工作,而且更令人困惑的是,之间的区别是什么?

CSS

#reportDetails table tr:hover td,
#reportDetails table tr.hover td  {
    background: #aae4e2;
    color: #333333;
}

Sample html

<div id="reportDetails">
   <table>
     <tr>
       <td> something</td>
       <td> soemthing else</td>
     </tr>
     <tr>
        <td> something2</td>
        <td> soemthing else2</td>
     </tr>
   </table>
 </div>

dojo.behaviorscript

dojo.require("dojo.behavior");  
if (dojo.isIE <= 6) {
 dojo.behavior.add({
   #reportDetails tr : {
   onmouseover: function(evt){ dojo.addClass(evt.currentTarget, "hover");},
   onmouseout: function(evt){dojo.removeClass(evt.currentTarget, "hover");
   }
  }
 });
}
dojo.behavior.apply();

dojo.query for Eachscript

    if (dojo.isIE <= 6) {
 dojo.addOnLoad(function() {
  dojo.query("tr", "reportDetails").forEach(function(node){ 
   node.onmouseover=function(){dojo.addClass(node,"hover");}
   node.onmouseout=function() {dojo.removeClass(node,"hover");}
   }
  });
 });
}

dojo.query ataching brief to the activities

    if (dojo.isIE <= 6) {
 dojo.addOnLoad(function(){
  dojo.query("tr", "reportDetails")
  .onmouseover(function(evt){dojo.addClass(evt.currentTarget, "hover");})
  .onmouseout(function(evt){dojo.removeClass(evt.currentTarget, "hover");});
 });
}

我假定,evt. CurrentTargetnode可全部替换为this,目前仍然有效。 我认为,在2到3之间没有真正的差别,但第一种可能实际上采用不同的方法。

最佳回答

简言之,没有真正的差别。 它们都与预期相同。

使用最方便的方法。


<代码>该是指目前履行的职能的所有人。 这不同于法律背景。 因此,不能将<代码>node和evt改为this

问题回答

暂无回答




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