如何在不影响标记的情况下替换html文档中的文本? [英] How to replace text in html document without affecting the markup?
问题描述
如何编写一个javascript / jquery函数来替换html文档中的文本而不影响标记,只影响文本内容?
How can I write a javascript/jquery function that replaces text in the html document without affecting the markup, only the text content?
例如,如果我想要在这里用no style替换style这个词:
For instance if I want to replace the word "style" with "no style" here:
<tr>
<td style="width:300px">This TD has style</td>
<td style="width:300px">This TD has <span class="style100">style</span> too</td>
</tr>
我不希望替换影响标记,只是文本内容可见用户。
I don't want the replacement to affect the markup, just the text content that is visible to the user.
推荐答案
您必须在文档中查找文本节点,我使用这样的递归函数:
You will have to look for the text nodes on your document, I use a recursive function like this:
function replaceText(oldText, newText, node){
node = node || document.body; // base node
var childs = node.childNodes, i = 0;
while(node = childs[i]){
if (node.nodeType == 3){ // text node found, do the replacement
if (node.textContent) {
node.textContent = node.textContent.replace(oldText, newText);
} else { // support to IE
node.nodeValue = node.nodeValue.replace(oldText, newText);
}
} else { // not a text mode, look forward
replaceText(oldText, newText, node);
}
i++;
}
}
如果你这样做,你的标记和事件处理程序将保持不变。
If you do it in that way, your markup and event handlers will remain intact.
编辑:更改代码以支持IE,因为IE上的文本节点没有 textContent 属性,在IE中你应该使用 nodeValue 属性,它也没有实现节点界面。
Changed code to support IE, since the textnodes on IE don't have a textContent property, in IE you should use the nodeValue property and it also doesn't implements the Node interface.
检查示例这里。
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