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仅IE6/7/8中innerHTML返回值忽略英文空格的问题_javascript技巧

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Release： 2016-05-16 18:08:20
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如下

复制代码 代码如下:

jack




div[id=user]中的文本"jack"前有两个英文空格，各浏览器下结果如下

IE6/7/8 : 弹出4，即忽略了空格

IE9/Firefox/Safari/Chrome/Opera : 弹出6，即没有忽略空格

另换成中文空格不会有这个问题。

以下是Gray Zhang的补充：
1、IE6-8下，对于一个元素的firstChild，如果其为TextNode，且nodeValue前n个字符为空格字符（包括空格、 、 、 和一个分页符号U+000C），则这n个字符被忽略
2、在IE6-8下，对一个元素的lastChild，如果其为TextNode，且nodeValue最后n个字符为空格字符（包括空格、 、 、 和一个分页符号U+000C），则这n个字符会被合并为一个空格（ASCII码为32），无论你是\t还是\n，都会变成一个空格
Related labels：
innerHTML 英文空格
source：php.cn
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