diff options
Diffstat (limited to 'node_modules/rxjs/dist/esm/internal/operators/skipLast.js')
| -rw-r--r-- | node_modules/rxjs/dist/esm/internal/operators/skipLast.js | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/node_modules/rxjs/dist/esm/internal/operators/skipLast.js b/node_modules/rxjs/dist/esm/internal/operators/skipLast.js new file mode 100644 index 0000000..5e99e1d --- /dev/null +++ b/node_modules/rxjs/dist/esm/internal/operators/skipLast.js @@ -0,0 +1,28 @@ +import { identity } from '../util/identity'; +import { operate } from '../util/lift'; +import { createOperatorSubscriber } from './OperatorSubscriber'; +export function skipLast(skipCount) { + return skipCount <= 0 + ? + identity + : operate((source, subscriber) => { + let ring = new Array(skipCount); + let seen = 0; + source.subscribe(createOperatorSubscriber(subscriber, (value) => { + const valueIndex = seen++; + if (valueIndex < skipCount) { + ring[valueIndex] = value; + } + else { + const index = valueIndex % skipCount; + const oldValue = ring[index]; + ring[index] = value; + subscriber.next(oldValue); + } + })); + return () => { + ring = null; + }; + }); +} +//# sourceMappingURL=skipLast.js.map
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