显示IFRAME的加载时间 [英] Displaying load time of IFRAME
本文介绍了显示IFRAME的加载时间的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！
问题描述
您好，我试图计算完全下载并呈现IFRAME内容并将其显示在DIV元素中所花费的时间.然后使用按钮刷新IFRAME的内容，然后重新计算时间并将其显示在同一DIV元素中.
我设法刷新了IFRAME的内容，但是显示了窗口而不是IFRAME的加载时间.
代码在下面列出
Hi im trying to calculates the time taken to completely download and render the contents of the IFRAME and display it in a DIV element. And refresh the contents of the IFRAME with a button and recalculate the time and display it in the same DIV element.
I have managed to refresh the contents of the IFRAME and but display the load time of the window not the IFRAME.
code is listed below
<html>
<head>
<script type="text/javascript">
//calculate the time before calling the function in window.onload
beforeload = (new Date()).getTime();
function pageloadingtime()
{
//calculate the current time in afterload
afterload = (new Date()).getTime();
// now use the beforeload and afterload to calculate the seconds
secondes = (afterload-beforeload)/1000;
document.getElementById("loadingtime").innerHTML = "<font color='red'>(You Page Load took " + secondes + " seconde(s).)</font>";
}
window.onload = pageloadingtime;
</script>
<script type="text/javascript">
function Reload() {
var f = document.getElementById('iframe1');
f.src = f.src;
}
</script>
<title>load time</title>
</head>
<body>
<div id="loadingtime"></div>
<br>
<iframe id="iframe1" width="800" height="350" src="http://google.com"></iframe>
<br>
<input type="button" value="Reload" onClick="pageloadingtime()" onClick="Reload();">
<br>
</body>
</html>
推荐答案
您遇到的问题是您使用的是window.onload，而不是iframe的onload属性.输入按钮触发了Reload()和pageloadingtime()，这也是一个很大的问题.我通过将beforeload的设置也移到Reload()并将触发器附加到iframe的onload属性来修复代码:
The problem you are having is that you are using window.onload and not the iframe''s onload attribute. The input button triggered both Reload() and pageloadingtime() which is also a big no no. I fixed your code by moving the setting of beforeload also into Reload() and attaching the trigger to iframe''s onload attribute:
<html>
<head>
<script type="text/javascript">
//calculate the time before calling the function in window.onload
beforeload = (new Date()).getTime();
function pageloadingtime()
{
//calculate the current time in afterload
afterload = (new Date()).getTime();
// now use the beforeload and afterload to calculate the seconds
secondes = (afterload-beforeload)/1000;
document.getElementById("loadingtime").innerHTML = "<font color='red'>(You Page Load took " + secondes + " seconde(s).)</font>";
}
//window.onload = pageloadingtime;
</script>
<script type="text/javascript">
function Reload() {
beforeload = (new Date()).getTime();
var f = document.getElementById('iframe1');
f.src = f.src;
}
</script>
<title>load time</title>
</head>
<body>
<div id="loadingtime"></div>
<br>
<iframe id="iframe1" width="800" height="350" src="http://google.com" onload="pageloadingtime();"></iframe>
<br>
<input type="button" value="Reload" onClick="Reload();">
<br>
</body>
</html>
玩得开心！
-MRB
Have fun!
-MRB
非常感谢……我只是在如何将reload函数链接到iframe上遇到了麻烦，因此Reload()和pageloadingtime()被触发单击按钮...但是我会记住onload命令.再次感谢！
Hi thank you so much ... i was just having trouble with how to put link the reload function to the iframe hence the Reload() and pageloadingtime() being triggered by a button click ... but i shall keep the onload command in mind. thanks once again!
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