22 lines
No EOL
775 B
JavaScript
22 lines
No EOL
775 B
JavaScript
import { EMPTY } from '../observable/empty';
|
|
import { operate } from '../util/lift';
|
|
import { createOperatorSubscriber } from './OperatorSubscriber';
|
|
export function takeLast(count) {
|
|
return count <= 0
|
|
? () => EMPTY
|
|
: operate((source, subscriber) => {
|
|
let buffer = [];
|
|
source.subscribe(createOperatorSubscriber(subscriber, (value) => {
|
|
buffer.push(value);
|
|
count < buffer.length && buffer.shift();
|
|
}, () => {
|
|
for (const value of buffer) {
|
|
subscriber.next(value);
|
|
}
|
|
subscriber.complete();
|
|
}, undefined, () => {
|
|
buffer = null;
|
|
}));
|
|
});
|
|
}
|
|
//# sourceMappingURL=takeLast.js.map
|