diff --git a/poc.js b/poc.js
deleted file mode 100644
index 75201dd..0000000
--- a/poc.js
+++ /dev/null
@@ -1,43 +0,0 @@
-const { ReplaySubject } = require('rxjs');
-const { map, scan } = require('rxjs/operators');
-
-const { exhaustMap, takeLast, take } = require('rxjs/operators');
-
-let _scan = scan((acc, curr) => {
-  acc.push(curr);
-  if (acc.length > 4) {
-    acc.shift();
-  }
-  return acc;
-}, [])
-
-let _average = map(arr => arr.reduce((acc, current) => acc + current, 0) / arr.length)
-
-let sub = new ReplaySubject();
-sub.next(1)
-sub.next(2)
-sub.next(3)
-sub.next(4)
-
-// sub.pipe(_scan, _average).subscribe((v) => {
-sub.pipe(takeLast(2)).subscribe((v) => {
-  console.log("got value " + v)
-})
-
-// result:
-// got value 1
-// got value 1.5
-// got value 2
-// got value 2.5
-
-// wanted result:
-// got value 2.5
-
-console.dir("---------")
-
-sub.next(5)
-sub.next(6)
-
-// expected afterwards
-// got value 3.5
-// got value 4.5