hugoWebsite/node_modules/rxjs/dist/esm5/internal/operators/sample.js

22 lines
772 B
JavaScript

import { operate } from '../util/lift';
import { noop } from '../util/noop';
import { createOperatorSubscriber } from './OperatorSubscriber';
export function sample(notifier) {
return operate(function (source, subscriber) {
var hasValue = false;
var lastValue = null;
source.subscribe(createOperatorSubscriber(subscriber, function (value) {
hasValue = true;
lastValue = value;
}));
notifier.subscribe(createOperatorSubscriber(subscriber, function () {
if (hasValue) {
hasValue = false;
var value = lastValue;
lastValue = null;
subscriber.next(value);
}
}, noop));
});
}
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