I need to overwrite a run-time function js

Question

i need to overwrite a function that I take from a script, the function start like this:

(function (K) {
//code
})(window);

for a normal function it's easy:

function nameFun = function (params) {
//code
}

so now , how I can overwrite that function ?

Thank you

Answer 1

I don't believe you can - it's an anonymous function that is immediately invoked, so it won't be stored on any object for you to overwrite. Even if it were stored somewhere, as it is invoked immediately you're not going to be able to overwrite the function with your own code before it's execution.