Add web front-end and fix API issues

node_modules/rxjs/dist/cjs/internal/operators/distinct.js

@@ -0,0 +1,22 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.distinct = void 0;
+var lift_1 = require("../util/lift");
+var OperatorSubscriber_1 = require("./OperatorSubscriber");
+var noop_1 = require("../util/noop");
+var innerFrom_1 = require("../observable/innerFrom");
+function distinct(keySelector, flushes) {
+    return lift_1.operate(function (source, subscriber) {
+        var distinctKeys = new Set();
+        source.subscribe(OperatorSubscriber_1.createOperatorSubscriber(subscriber, function (value) {
+            var key = keySelector ? keySelector(value) : value;
+            if (!distinctKeys.has(key)) {
+                distinctKeys.add(key);
+                subscriber.next(value);
+            }
+        }));
+        flushes && innerFrom_1.innerFrom(flushes).subscribe(OperatorSubscriber_1.createOperatorSubscriber(subscriber, function () { return distinctKeys.clear(); }, noop_1.noop));
+    });
+}
+exports.distinct = distinct;
+//# sourceMappingURL=distinct.js.map