存在问题:IE中可以直接使用event对象,但是Mozilla不可以直接使用。
例如:
下面看一下两者都兼容的代码:
IE&Moz
event)">
2,关于event.srcElement[IE]和event.target[Moz]
Mozilla下的e.target相当于ie下的event.srcElement,但细节上有区别,后者是返回一个Html Element
而e.target返回的是个节点,也就是说包括文本节点。
看下面的例子代码,可以看出两者的区别和联系:
IE ONLY
1 | 2 |
3 | 4 |
function doIt(){ alert(event.srcElement.tagName); }
Moz
1 | 2 |
3 | 4 |
function doIt(oEvent){
var Target = oEvent.target;
while(oTarget.nodeType != 1)
Target = oTarget.parentNode;
alert(oTarget.tagName);
}
3,键盘值的取得
Mozilla下的event.which与IE下的event.keyCode相当。
见代码:
IE
Moz
4,event.x,event.y[IE]和event.pageX,event.pageY[Moz]
IE中取鼠标点击的绝对位置,使用event对象的event.x和event.y
Moz中取鼠标点击的绝对位置,使用event对象的event.pageX和event.pageY
所以为了兼容,需要自己做处理,参考代码如下:
IE&Moz
5,event.offsetX,event.offsetY[IE]和event.pageX,event.pageY[Moz]
IE中取鼠标点击的相对位置,使用event对象的event.offsetX和event.offsetY
Moz中取鼠标点击的相对位置,使用event对象的event.layerX和event.layerY
所以为了兼容,需要自己做处理,参考代码如下:
IE&Moz
6,事件绑定
事件绑定上Mozilla用addEventListener,removeEventListener
对应IE的attachEvent,detatchEvent
看下面的例子代码:
IE ONLY
Moz
注意:蓝色字的部分。IE中要在事件前加on,而在Moz中不能加。
对象选择篇
1,通过ID访问Html元素
一般直接使用document.getElementById就可以了,如果要兼容IE4,可以再加上document.all
IE&Moz
2,如果要使用document.form.item类似的访问方法,要注意下面的问题:
IE中允许存在类似于 document.formName.item("itemName") 这样的语句,但是Moz下是不可以的
要想在Mozilla下也可以正常运行,需要把写法正规化,如下:
IE&Moz
注意:在Mozilla中,访问数组的时候,不能用类似于arr("itemName")的形式,必须使用中括号,而在IE中两者都可以。
另外,在写上面这段测试代码的时候,我发现了Mozilla浏览器的一个有趣的问题,不知道是不是Bug。大家可以试一下下面这段代码:
Moz
Moz
个人认为可能是因为Mozilla太符合Dom标准了吧
DOM篇
1,删除节点
IE中有removeNode方法,可以对节点进行删除,如下:
IE
document.getElementById("myButton").removeNode();
但是Mozilla中,没有这个方法,只能是先找到父节点,然后调用Dom方法removeChild才可以达到目的,如下:
IE&Moz
var Node = document.getElementById("myButton");
oNode.parentNode.removeChild(oNode);
2,交换节点
IE中有swapNode方法可以交换两个HTML元素节点,如下:
IE
但是Mozilla中,没有这个方法,可以自己写函数实现,如下:
IE&Moz
3,关于节点的插入
IE中,有insertAdjacentHTML和insertAdjacentElement两个好用的方法,如下:
IE
但是Mozilla中是没有这两个方法的,为了兼容它们,统一采用Dom的insertBefore方法,如下:
IE&Moz
var Div = document.getElementById("div1");
var Element = document.createElement("input");
oElement.type = "text";
oDiv.insertBefore(oElement,null);
4, about innerHTML and innerText
For innerHTML, both IE and Mozilla support it, so there is no problem, but for innerText, only IE has it, but Moz does not have it
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