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node_modules/rxjs/_esm2015/internal/operators/reduce.js

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+import { scan } from './scan';
+import { takeLast } from './takeLast';
+import { defaultIfEmpty } from './defaultIfEmpty';
+import { pipe } from '../util/pipe';
+export function reduce(accumulator, seed) {
+    if (arguments.length >= 2) {
+        return function reduceOperatorFunctionWithSeed(source) {
+            return pipe(scan(accumulator, seed), takeLast(1), defaultIfEmpty(seed))(source);
+        };
+    }
+    return function reduceOperatorFunction(source) {
+        return pipe(scan((acc, value, index) => accumulator(acc, value, index + 1)), takeLast(1))(source);
+    };
+}
+//# sourceMappingURL=reduce.js.map