I am trying to access a JavaScript function in a programatically created iFrame from a JavaScript function outside. I tried several ways, but was not successful. L ike window.frames['frameid'开发者_如何学C], etc.
Could you please provide me the correct syntax?
Yes, they are in the same domain. Actually, I am using ExtJS framework. I have a JSP inside an iFrame, I would like to call the javascript functions in the JSP from the a javascript function outside which is basically in a JS file.
Here's a more appropriate example based on your comments ;)
The main page
<html>
<head>
<title>Main Page</title>
</head>
<body>
<iframe src="iframe.html"></iframe>
<script>
var receiver = {
listen:function(msg){
alert(msg);
}
};
</script>
</body>
</html>
The iframe page: iframe.html, but can be a JSP with similar output
<html>
<head>
<title>iframe page</title>
<script src="external.js"></script>
</head>
<body>
<!-- some content here -->
<script>
externalFunction('hello', window);
</script>
</body>
</html>
And the JS file: external.js
function externalFunction(msg, w){
w.parent.receiver.listen(msg);
}
Place those 3 files in the same directory and open the main page. You should get a popup with "hello".
![Interactive visualization of a graph in python [closed]](https://www.devze.com/res/2023/04-10/09/92d32fe8c0d22fb96bd6f6e8b7d1f457.gif)
加载中,请稍侯......
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