执行innerHTML时分，代码片段的js
日期：2014-05-16 浏览次数：20764 次
执行innerHTML时候，代码片段的js
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8" />
<meta http-equiv="X-UA-Compatible" content="IE=Edge" />
<title>大屏幕</title>
<script type="text/javascript" src="jquery.js" ></script>
<style type="text/css">
</style>
</head>
<body>
<div id="cnt"></div>
<input id="btn" value="加载" type="button"/>
<script>
var excScript = (function(){
var timer = 0,
repeat = 0,
head = document.getElementsByTagName("head")[0],
queue = [];
function createTmpScript(scriptEl,idx){
var xmlhttp = new XMLHttpRequest();
xmlhttp.onreadystatechange = function(){
if(xmlhttp.readyState == 4 && xmlhttp.status == 200){
console.log("idx:" + idx)
queue[idx].text = xmlhttp.responseText;
queue[idx].load = true;
}
};
xmlhttp.open("GET",scriptEl.src,true);
xmlhttp.send(null);
}
function doExc(item){
console.log("doExc")
var script = document.createElement('script');
script.type = 'text/javascript';
var code = item.text;
//console.log("code:" + code)
try{
script.appendChild(document.createTextNode(code));
}catch(ex){
script.text = code;//this works in all browers.
}
//console.log(code)
item.el.parentNode.replaceChild(script,item.el);
}
function excQueue(){
console.log('queue.length:' + queue.length);
if(queue.length){
console.log('queue[0]')
if(queue[0].load){
doExc(queue.shift());
arguments.callee();
}else{
repeat++;
if(repeat < 10){
console.log("repeat:" + repeat);
setTimeout(arguments.callee,300);
}
}
}
}
function initQueue(scripts){
var script = null,
i = 0, len = scripts.length;
for(i=0; i < len; i++){
script = scripts[i];
if(!script.type || script.type == "text/javascript"){
if(script.src){
createTmpScript(script,i);
queue.push({
"el": script,
"text" : null,
"load": false
});
}else{
queue.push({
"el": script,
"load": true,
"text" : script.text || script.textContent || script.innerHTML
});
}
}
}
}
return function(scripts){
initQueue(scripts);
console.log(queue)
excQueue();
};
})();
jQuery("#btn").click(function(){
jQuery.get("www.html?_=" + Math.random(),function(response){
jQuery("#cnt").html(response);
});
return;
var fragment = document.createDocumentFragment();
var div = document.createElement("div");
var _html = '';
var xmlhttp = new XMLHttpRequest();
xmlhttp.onreadystatechange = function(){
if(xmlhttp.readyState == 4 && xmlhttp.status == 200){
document.getElementById("cnt").innerHTML = xmlhttp.responseText;
var scripts = document.getElementById("cnt").getElementsByTagName("script");
/*
jQuery.each(scripts,function(i,item){
var el = document.createElement("script");
if(item.src){
el.src = item.src;
item.parentNode.replaceChild(el, item);
}
});
*/
excScript(scripts);
}
};
xmlhttp.open("GET","www.html",true);
xmlhttp.send(null);
});
</script>
</body>
</html>
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