Add web front-end and fix API issues

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

@@ -0,0 +1,13 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.throttleTime = void 0;
+var async_1 = require("../scheduler/async");
+var throttle_1 = require("./throttle");
+var timer_1 = require("../observable/timer");
+function throttleTime(duration, scheduler, config) {
+    if (scheduler === void 0) { scheduler = async_1.asyncScheduler; }
+    var duration$ = timer_1.timer(duration, scheduler);
+    return throttle_1.throttle(function () { return duration$; }, config);
+}
+exports.throttleTime = throttleTime;
+//# sourceMappingURL=throttleTime.js.map