import { params } from '@algoristic/tinyparams-async';

params('foo')
  .observe()
  .subscribe((value) => {
    console.log(`foo=${foo}`);
  });

params('foo')
  .observe()
  .pipe(pairwise(), startWith(undefined))
  .subscribe(([prev, curr]) => {
    console.log(`previous=${prev}, current=${curr}`);
  });

params.observe().subscribe((snapshot) => {
  console.log(snapshot.entries());
});