我尝试在<div>上使用innerHTML加载一些脚本到页面中。脚本似乎加载到DOM中，但它从未执行(至少在Firefox和Chrome中)。有一种方法让脚本执行时插入他们与innerHTML?
示例代码:
<！DOCTYPE html > < html > <身体onload = " . getelementbyid(机)。innerHTML = '<script>alert(\'hi\')<\/script>'"> 难道不应该出现“hi”的提醒吗? < div id = "装载机" > < / div > 身体< / > < / html >
当前回答
单线解决方案如下:
document.getElementsByTagName("head")[0].append(document.createRange().createContextualFragment('<script src="https://google.com/file.js"></script>'));
其他回答
这里有一个非常有趣的解决方案: http://24ways.org/2005/have-your-dom-and-script-it-too
所以使用this代替script标签:
<img src="empty.gif" onload="alert('test');this. parentnode . removechild (this);"/>
是的，你可以，但你必须在DOM之外做，而且顺序必须是正确的。
var scr = '<scr'+'ipt>alert("foo")</scr'+'ipt>';
window.onload = function(){
var n = document.createElement("div");
n.innerHTML = scr;
document.body.appendChild(n);
}
.．.将提醒'foo'。这行不通:
document.getElementById("myDiv").innerHTML = scr;
即使这样也不行，因为先插入节点:
var scr = '<scr'+'ipt>alert("foo")</scr'+'ipt>';
window.onload = function(){
var n = document.createElement("div");
document.body.appendChild(n);
n.innerHTML = scr;
}
你可以这样做:
var mydiv = document.getElementById("mydiv");
var content = "<script>alert(\"hi\");<\/script>";
mydiv.innerHTML = content;
var scripts = mydiv.getElementsByTagName("script");
for (var i = 0; i < scripts.length; i++) {
eval(scripts[i].innerText);
}
尝试使用template和document.importNode。这里有一个例子:
<!DOCTYPE html> <html> <head> <meta charset="UTF-8"> <title>Sample</title> </head> <body> <h1 id="hello_world">Sample</h1> <script type="text/javascript"> var div = document.createElement("div"); var t = document.createElement('template'); t.innerHTML = "Check Console tab for javascript output: Hello world!!!<br/><script type='text/javascript' >console.log('Hello world!!!');<\/script>"; for (var i=0; i < t.content.childNodes.length; i++){ var node = document.importNode(t.content.childNodes[i], true); div.appendChild(node); } document.body.appendChild(div); </script> </body> </html>
下面是一个递归函数来设置一个元素的innerHTML，我在我们的广告服务器中使用:
// o: container to set the innerHTML
// html: html text to set.
// clear: if true, the container is cleared first (children removed)
function setHTML(o, html, clear) {
if (clear) o.innerHTML = "";
// Generate a parseable object with the html:
var dv = document.createElement("div");
dv.innerHTML = html;
// Handle edge case where innerHTML contains no tags, just text:
if (dv.children.length===0){ o.innerHTML = html; return; }
for (var i = 0; i < dv.children.length; i++) {
var c = dv.children[i];
// n: new node with the same type as c
var n = document.createElement(c.nodeName);
// copy all attributes from c to n
for (var j = 0; j < c.attributes.length; j++)
n.setAttribute(c.attributes[j].nodeName, c.attributes[j].nodeValue);
// If current node is a leaf, just copy the appropriate property (text or innerHTML)
if (c.children.length == 0)
{
switch (c.nodeName)
{
case "SCRIPT":
if (c.text) n.text = c.text;
break;
default:
if (c.innerHTML) n.innerHTML = c.innerHTML;
break;
}
}
// If current node has sub nodes, call itself recursively:
else setHTML(n, c.innerHTML, false);
o.appendChild(n);
}
}
你可以在这里看到演示。
