Question

From a same domain iframe I want to create a new function and append it to the parent window and then invoke that function from either the iframe or the parent. Something like this.

parent.myFunction = function(){ ... }; myfunction;

is there a good way to do this?

Answer 1

You can do almost exactly what you did

parent.myFunction = function(){ ... };
parent.myfunction(); // calling the function in parent window

And from the parent window, you’ll be able to do simply

myFunction();