如何使用Java脚本替换HTML页面中所有出现的字符串

Question

I know this question may be asked before but I did not find the correct answer that works.

I tried this code

$('body *').each(function(k,v){$(v).text($(v).text().replace("Hazem","mizzo"))});

but the page crashes, I don't know why.

I'm prefer the code to be in pure javascript not jQuery. Thanks.

Answer 1

You should walk the DOM, find text nodes, and replace the found text in each.

Here's a simple example. You can make walkText() more generic by passing a callback that does the replacement.

 function walkText(node) { if (node.nodeType == 3) { node.data = node.data.replace(/foo/g, "bar"); } if (node.nodeType == 1 && node.nodeName != "SCRIPT") { for (var i = 0; i < node.childNodes.length; i++) { walkText(node.childNodes[i]); } } } walkText(document.body); 

 foo <b>foo</b> foo