Question

I have a document, which has two javascript functions A(); and B();.The functions get called in no particular order, I want to do something upon the last call.

I can accomplish the task by using local variables, but before doing so I’d like to confirm if there’s more elegant/robust way for doing that – I might have more than two such functions, which makes local vars solution a complete mess.

Update 1 – More details

I’ve a few SilverLight plugins on a page, each has

<param name="onLoad" value="pluginLoaded" />

I can’t go any further than “pluginLoaded” no paramters no nothing.

The plugins get loaded in an absolute random order, upon the overall completion I want to call another function.

Answer 1

We do this by redifining the functions:

You now have:

function A() { /* do something */ }
function B() { /* do something */ }
function FinalCurtain() { /* do something after A and B have been called*/ }

Just do
EDIT: After requirement “I’d like doA & doB to be called just once each”

function DoA() { /* do something */ }
function DoB() { /* do something */ }
function DoFinalCurtain() { /* do something after A and B have been called*/ }

function A() {
   DoA();
   B=function() {DoB(); FinalCurtain();}
   A=function() {}
}

function B() {
   DoB();
   A=function() {DoA(); FinalCurtain();}
   B=function() {}
}

function FinalCurtain() {
   DoFinalCurtain();
   //Remove next 2 lines if you do NOT want to start the process over once DoFinalCurtain() has beenm called.
   A=function() {DoA();}
   B=function() {DoB();}
}