javascript 有没有办法通过属性getElement xml？
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Is there a way to getElement xml by attribute?
提问by Wenn
I'm trying to grab an xml node by its attribute.
我正在尝试通过其属性获取 xml 节点。
edit
编辑
I'm trying to retrieve an element by its attribute value using javascript xml instead of jquery. Is there a simple method for this?
我正在尝试使用 javascript xml 而不是 jquery 通过其属性值检索元素。有没有一个简单的方法呢？
采纳答案by Silkster
You have to find a list of elements first, then filter by their attributes.
您必须先找到元素列表，然后按其属性进行过滤。
Check out my demo here: http://jsfiddle.net/silkster/eDP5V/
在这里查看我的演示：http: //jsfiddle.net/silkster/eDP5V/
回答by Morio
It is really easy using jQuery. Suppose we have a string like this.
使用 jQuery 真的很容易。假设我们有一个这样的字符串。
<document>
<value type="people">
<name>
John
</name>
</value>
<value type="vehicle">
<name>
Ford
</name>
</value>
</document>
Then
然后
var xmlDocument = $.parseXML(str);
$(xmlDocument).find("value[type='people'] name").text()
We will get string 'John' back.
我们将取回字符串 'John'。
回答by rlemon
I feel this justifies a new answer as it is JQuery Free
我觉得这证明了一个新答案是合理的，因为它是 JQuery Free
document.getElementsByAttribute = function(attribute, value, tagName, parentElement) {
var children = ($(parentElement) || document.body).getElementsByTagName((tagName || '*'));
return $A(children).inject([], function(elements, child) {
var attributeValue = child.getAttribute(attribute);
if(attributeValue != null) {
if(!value || attributeValue == value) {
elements.push(child);
}
}
return elements;
});
}
it has been pointed out to me that I posted the wrong script.. hehe read here
有人向我指出我发布了错误的脚本.. hehe 阅读这里
// document.getElementsByAttribute([string attributeName],[string attributeValue],[boolean isCommaHyphenOrSpaceSeparatedList:false])
document.getElementsByAttribute=function(attrN,attrV,multi){
attrV=attrV.replace(/\|/g,'\|').replace(/\[/g,'\[').replace(/\(/g,'\(').replace(/\+/g,'\+').replace(/\./g,'\.').replace(/\*/g,'\*').replace(/\?/g,'\?').replace(/\//g,'\/');
var
multi=typeof multi!='undefined'?
multi:
false,
cIterate=document.getElementsByTagName('*'),
aResponse=[],
attr,
re=new RegExp(multi?'\b'+attrV+'\b':'^'+attrV+'$'),
i=0,
elm;
while((elm=cIterate.item(i++))){
attr=elm.getAttributeNode(attrN);
if(attr &&
attr.specified &&
re.test(attr.value)
)
aResponse.push(elm);
}
return aResponse;
}
回答by rlemon
jquery can do this very easily. http://think2loud.com/224-reading-xml-with-jquery/
jquery 可以很容易地做到这一点。http://think2loud.com/224-reading-xml-with-jquery/
