谈谈getAttribute来获取节点的src值
此代码片段来源与seajs
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首先关于hasAttribute,我们都知道,IE6-7不支持
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下面分支里面的:
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node.getAttribute('src',4);?
在源码的这个http://msdn.microsoft.com/en-us/library/ms536429%28VS.85%29.aspx 里面大家可以看到有一个这样的评论。
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很多的朋友可能还不知道getAttribute这个api是有第二个参数,或者很多人不是很清楚它有哪些值,代表什么意思。
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注释:在IE下的
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0 ? ? --------- ?Default.Performs a property search that is not case-sensitive,and returns an interpolated value if the property is found.1 ? ? --------- ?performs a case-sensitive property search.To find a match,the uppercase and lowercase letters in strAttributeName must exactly match those in the attribute name.2 ? ? --------- ?returns attribute value as a String. This flag does not work for event properties.4 ? ? --------- ?returns attribute value as a fully expanded URL. Only works for URL attributes.?