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import { operate } from '../util/lift';
import { createOperatorSubscriber } from './OperatorSubscriber';
export function find(predicate, thisArg) {
return operate(createFind(predicate, thisArg, 'value'));
}
export function createFind(predicate, thisArg, emit) {
const findIndex = emit === 'index';
return (source, subscriber) => {
let index = 0;
source.subscribe(createOperatorSubscriber(subscriber, (value) => {
const i = index++;
if (predicate.call(thisArg, value, i, source)) {
subscriber.next(findIndex ? i : value);
subscriber.complete();
}
}, () => {
subscriber.next(findIndex ? -1 : undefined);
subscriber.complete();
}));
};
}
//# sourceMappingURL=find.js.map
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