1 files changed, 2 insertions, 2 deletions
diff --git a/tools/node_modules/eslint/node_modules/rxjs/internal/util/subscribeTo.js b/tools/node_modules/eslint/node_modules/rxjs/internal/util/subscribeTo.js
index e08d2efdeb..b1a0e6c123 100644
--- a/tools/node_modules/eslint/node_modules/rxjs/internal/util/subscribeTo.js
+++ b/tools/node_modules/eslint/node_modules/rxjs/internal/util/subscribeTo.js
@@ -23,7 +23,7 @@ exports.subscribeTo = function (result) {
             }
         };
     }
-    else if (result && typeof result[observable_1.observable] === 'function') {
+    else if (!!result && typeof result[observable_1.observable] === 'function') {
         return subscribeToObservable_1.subscribeToObservable(result);
     }
     else if (isArrayLike_1.isArrayLike(result)) {
@@ -32,7 +32,7 @@ exports.subscribeTo = function (result) {
     else if (isPromise_1.isPromise(result)) {
         return subscribeToPromise_1.subscribeToPromise(result);
     }
-    else if (result && typeof result[iterator_1.iterator] === 'function') {
+    else if (!!result && typeof result[iterator_1.iterator] === 'function') {
         return subscribeToIterable_1.subscribeToIterable(result);
     }
     else {