Observable Events

Example usage

let myEvent = new ObservableEvent<[string, number]>() //types of parameters

function foo(a: string, b: number) { //the types of parameters you specified earlier  
  console.log(`${a} ${b}`);
}

function bar(x: string, y: number) {
  console.log(`${y} ${x}`);
}

myEvent.subscribe(foo)
  .subscribe(bar)           //add foo and bar to subscribers
  .invokeSync('zxc', 123);  //call each subscriber with passed parameters
/* output: 
zxc 123
123 zxc
*/
myEvent.unsubscribe(bar)    //delete bar from subscribers
  .invokeSync('qwe', 321); 
/* output: 
qwe 321
*/

Methods

ObservableEvent<argT extends any[]> argT is array of types what every function must take

subscribe(fun: { (...args: argT): any }) add function to subscribers

unsubscribe(fun: { (...args: argT): any }) delete function from subscribers

invokeSync(...args: argT) call each function with passed parameters synchronously

invoke(..args: argT) call each function with passed parameters asynchronously

every method returns this (except invoke, it returns a Promise)