How to add JavaScript code into existing iFrame using jQuery?

Question

I want to add a JavaScript snippet into an existing iFrame in the page using jQuery. I have the following code...

Code:

content = \"

        

Answer 1

This worked for me, paste following code in the page which is in an iframe, not the parent page:

window.myFunction = function(args) {
   alert("script from iframe");
}

And now add following code to call above function:

var iframe = document.getElementById("iframeId");
iframe.contentWindow.myFunction(args);