12 lines
464 B
Plaintext
12 lines
464 B
Plaintext
import { switchMap } from './switchMap';
|
|
import { operate } from '../util/lift';
|
|
export function switchScan(accumulator, seed) {
|
|
return operate((source, subscriber) => {
|
|
let state = seed;
|
|
switchMap((value, index) => accumulator(state, value, index), (_, innerValue) => ((state = innerValue), innerValue))(source).subscribe(subscriber);
|
|
return () => {
|
|
state = null;
|
|
};
|
|
});
|
|
}
|
|
//# sourceMappingURL=switchScan.js.map |