JS Attribute属性操作详解_基础知识
Attribute是属性的意思，文章仅对部分兼容IE和FF的Attribute相关的介绍。
attributes：获取一个属性作为对象
getAttribute：获取某一个属性的值
setAttribute：建立一个属性，并同时给属性捆绑一个值
createAttribute：仅建立一个属性
removeAttribute：删除一个属性
getAttributeNode：获取一个节点作为对象
setAttributeNode：建立一个节点
removeAttributeNode：删除一个节点
attributes可以获取一个对象中的一个属性，并且作为对象来调用，注意在这里要使用“[]”，IE在这里可以使用“()”，考虑到兼容性的问题，要使用“[]”。关于attributes属性的使用方式上，IE和FF有巨大的分歧，在此不多介绍。
attributes的使用方法：（IE和FF通用）
<body>
<div id = "t"><input type = "hidden" id = "sss" value = "aaa"></div>
</body>
<script>
var d = document.getElementById("sss").attributes["value"];
document.write(d.name);
document.write(d.value);
//显示value aaa
</script>getAttribute，setAttribute，createAttribute，removeAttribute四兄弟的概念比较容易理解，使用方法也比较简单，唯一需要注意这几点：
1、createAttribute在使用的时候不需要基于对象的，document.createAttribute()就可以。
2、setAttribute，createAttribute在使用的时候不要使用name，type，value等单词，IE和FF的反应都奇怪的难以理解。
3、createAttribute在使用的时候如果只定义了名字，没有d.nodeValue = "hello";语句定义值，FF会认为是一个空字符串，IE认为是undefined，注意到这点就可以了。
getAttribute的使用方法：
<body>
<div id = "t"><input type = "hidden" id = "sss" value = "aaa"></div>
</body>
<script>
var d = document.getElementById("sss").getAttribute("value");
document.write(d);
//显示 aaa
</script>setAttribute的使用方法：（你会发现多了一个名为good的属性hello）
<body>
<div id = "t"><input type = "hidden" id = "sss" value = "aaa"></div>
</body>
<script>
var d = document.getElementById("sss").setAttribute("good","hello");
alert(document.getElementById("t").innerHTML)
</script>createAttribute的使用方法：（多了一个名为good的空属性）
<head>
<meta charset="UTF-8">
<title></title>
<script>
window.onload = function (){
var oBox = document.getElementById('box');
alert( document.body.innerHTML );
oBox.setAttribute('value','name');
alert( document.body.innerHTML );
attr = document.createAttribute('hallo');
alert( document.body.innerHTML );/*同上*/
attr.nodeValue = 'world';/*对自定义属性进行编辑*/
alert( document.body.innerHTML );/*同上*/
oBox.setAttributeNode(attr);/*对标签插入自定义属性*/
alert( document.body.innerHTML );/*改变*/
};
</script>
</head>
<body>
<ul id="box">
</ul>
</body>removeAttribute的使用方法：（少了一个）
<body>
<div id = "t"><input type = "hidden" id = "sss" value = "aaa"></div>
</body>
<script>
var d = document.getElementById("sss").removeAttribute("value");
alert(document.getElementById("t").innerHTML)
</script>getAttributeNode，setAttributeNode，removeAttributeNode三个方法的特点是都直接操作一个node（节点），removeAttributeNode在一开始的时候总会用错，但是充分理解了node的含义的时候，就能够应用自如了。
getAttributeNode的使用方法：
<body>
<div id = "t"><input type = "hidden" id = "sss" value = "aaa"></div>
</body>
<script>
var d = document.getElementById("sss").getAttributeNode("value");
document.write(d.name);
document.write(d.value);
//显示 value aaa
</script>setAttributeNode的使用方法：
<body>
<div id = "t"><input type = "hidden" id = "sss" value = "aaa"></div>
</body>
<script>
var d = document.createAttribute("good");
document.getElementById("sss").setAttributeNode(d);
alert(document.getElementById("t").innerHTML);
</script>removeAttributeNode的使用方法：
<body>
<div id = "t"><input type = "hidden" id = "sss" value = "aaa"></div>
</body>
<script>
var d = document.getElementById("sss").getAttributeNode("value")
document.getElementById("sss").removeAttributeNode(d);
alert(document.getElementById("t").innerHTML);
</script>以上这篇JS Attribute属性操作详解就是小编分享给大家的全部内容了，希望能给大家一个参考，也希望大家多多支持脚本之家。
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