14 lines
680 B
JavaScript
14 lines
680 B
JavaScript
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import { Observable } from '../Observable';
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import { isFunction } from '../util/isFunction';
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import { mapOneOrManyArgs } from '../util/mapOneOrManyArgs';
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export function fromEventPattern(addHandler, removeHandler, resultSelector) {
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if (resultSelector) {
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return fromEventPattern(addHandler, removeHandler).pipe(mapOneOrManyArgs(resultSelector));
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}
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return new Observable((subscriber) => {
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const handler = (...e) => subscriber.next(e.length === 1 ? e[0] : e);
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const retValue = addHandler(handler);
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return isFunction(removeHandler) ? () => removeHandler(handler, retValue) : undefined;
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});
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}
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//# sourceMappingURL=fromEventPattern.js.map
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