wishthis/node_modules/rxjs/dist/esm/internal/operators/bufferCount.js
2022-06-08 12:36:39 +02:00

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1.4 KiB
JavaScript

import { operate } from '../util/lift';
import { createOperatorSubscriber } from './OperatorSubscriber';
import { arrRemove } from '../util/arrRemove';
export function bufferCount(bufferSize, startBufferEvery = null) {
startBufferEvery = startBufferEvery !== null && startBufferEvery !== void 0 ? startBufferEvery : bufferSize;
return operate((source, subscriber) => {
let buffers = [];
let count = 0;
source.subscribe(createOperatorSubscriber(subscriber, (value) => {
let toEmit = null;
if (count++ % startBufferEvery === 0) {
buffers.push([]);
}
for (const buffer of buffers) {
buffer.push(value);
if (bufferSize <= buffer.length) {
toEmit = toEmit !== null && toEmit !== void 0 ? toEmit : [];
toEmit.push(buffer);
}
}
if (toEmit) {
for (const buffer of toEmit) {
arrRemove(buffers, buffer);
subscriber.next(buffer);
}
}
}, () => {
for (const buffer of buffers) {
subscriber.next(buffer);
}
subscriber.complete();
}, undefined, () => {
buffers = null;
}));
});
}
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