Updated the files.

my-app/node_modules/rxjs/dist/esm5/internal/observable/race.js

@@ -0,0 +1,32 @@
+import { Observable } from '../Observable';
+import { innerFrom } from './innerFrom';
+import { argsOrArgArray } from '../util/argsOrArgArray';
+import { createOperatorSubscriber } from '../operators/OperatorSubscriber';
+export function race() {
+    var sources = [];
+    for (var _i = 0; _i < arguments.length; _i++) {
+        sources[_i] = arguments[_i];
+    }
+    sources = argsOrArgArray(sources);
+    return sources.length === 1 ? innerFrom(sources[0]) : new Observable(raceInit(sources));
+}
+export function raceInit(sources) {
+    return function (subscriber) {
+        var subscriptions = [];
+        var _loop_1 = function (i) {
+            subscriptions.push(innerFrom(sources[i]).subscribe(createOperatorSubscriber(subscriber, function (value) {
+                if (subscriptions) {
+                    for (var s = 0; s < subscriptions.length; s++) {
+                        s !== i && subscriptions[s].unsubscribe();
+                    }
+                    subscriptions = null;
+                }
+                subscriber.next(value);
+            })));
+        };
+        for (var i = 0; subscriptions && !subscriber.closed && i < sources.length; i++) {
+            _loop_1(i);
+        }
+    };
+}
+//# sourceMappingURL=race.js.map