Calling a function that's defined inside a function

Question

*Is there a way to call a function defined inside another function in javaSCRIPT? For example:

window.onload() = function() {
    function my_function(){
            


        

Answer 1

window.onload = function() {
    my_function()
};

function my_function(){
    alert("Blah");
};

function function_two(){
    my_function();
};

Answer 2

You can not do what you are asking to do. The function my_function()'s scope is only within the anonymous function, function(). It falls out of scope when the method is not executing, so this is not possible. Trevor's answer is the way to do this.

Answer 3

The scope of the function is the core issue here, as Zeychin and Trevor have said. I thought I'd offer another way of handling it. Basically, you can set your function to a variable that's in a higher scope (that is, accessible to both the onload and function_two functions), while defining it inside the onload function as you originally have:

var myFunction; //This is the placeholder which sets the scope

window.onload() = function() {
   myFunction = function() { //Assign the function to the myFunction variable
      print('blah');
   }
}

function function_two() {
   myFunction();
}

This might be handy if you only know the information you need for myFunction once you're in the onload event.