Graphics[{Hue@#,Disk[{0,0},{1,1},a=2Pi{##}],Black,Text[ToString@Round[100(#2-#)]<>"%",5Through@{Cos,Sin}@Mean@a/4]}&@@@Partition[Accumulate[#/Tr@#]~Prepend~0,2,1]]&

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@interface Interpreter:NSObject

@property NSMutableArray stack;

@end

@interface Interpreter (StackManipulationCommands)

-(id) pop;
-(void) push: (id) obj;
-(void) swap;
-(void) rotate;
-(void) duplicate;

@end

@interface Interpreter (MathCommands)

-(void) add: (double) x to: (double) y;
-(void) subtract: (double) x to: (double) y;
-(void) multiply: (double) x to: (double) y;
-(void) divide: (double) x to: (double) y;

@end

var listen = document.getElementById("listener");

listen.addEventListener("load", moduleDidLoad, true);
listen.addEventListener("message", handleMessage, true);

function handleMessage(message) {
  console.log(message);
}

function moduleDidLoad() {
  document.getElementById("akoya").postMessage("gogogo");
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