From cc7993960a1761db55af8d2d8fab329be17f978e Mon Sep 17 00:00:00 2001
From: Nicholas Jamieson <nicholas@cartant.com>
Date: Mon, 5 Jul 2021 18:20:34 +1000
Subject: [PATCH 1/3] chore: appease TS in CI

global.gc seems to be possibly undefined in the latest Node types
---
 spec/Subscriber-spec.ts            | 2 +-
 spec/operators/shareReplay-spec.ts | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/spec/Subscriber-spec.ts b/spec/Subscriber-spec.ts
index f4d63bccce..079c272b64 100644
--- a/spec/Subscriber-spec.ts
+++ b/spec/Subscriber-spec.ts
@@ -244,7 +244,7 @@ describe('Subscriber', () => {
   });
 
   const FinalizationRegistry = (global as any).FinalizationRegistry;
-  if (FinalizationRegistry) {
+  if (FinalizationRegistry && global.gc) {
 
     it('should not leak the destination', (done) => {
       let observer: Observer<number> | undefined = {
diff --git a/spec/operators/shareReplay-spec.ts b/spec/operators/shareReplay-spec.ts
index 0b336dac74..080aea9006 100644
--- a/spec/operators/shareReplay-spec.ts
+++ b/spec/operators/shareReplay-spec.ts
@@ -366,7 +366,7 @@ describe('shareReplay', () => {
   });
 
   const FinalizationRegistry = (global as any).FinalizationRegistry;
-  if (FinalizationRegistry) {
+  if (FinalizationRegistry && global.gc) {
     it('should not leak the subscriber for sync sources', (done) => {
       let callback: (() => void) | undefined = () => {
         /* noop */

From 015cba6f1803df63d19bd14d3a5b9e6fd7047cfb Mon Sep 17 00:00:00 2001
From: Nicholas Jamieson <nicholas@cartant.com>
Date: Mon, 5 Jul 2021 18:23:46 +1000
Subject: [PATCH 2/3] chore: appease TS

---
 spec/schedulers/intervalProvider-spec.ts | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/spec/schedulers/intervalProvider-spec.ts b/spec/schedulers/intervalProvider-spec.ts
index 990bf6cbfa..55bf3f9690 100644
--- a/spec/schedulers/intervalProvider-spec.ts
+++ b/spec/schedulers/intervalProvider-spec.ts
@@ -15,10 +15,10 @@ describe('intervalProvider', () => {
     let setCalled = false;
     let clearCalled = false;
 
-    global.setInterval = () => {
+    global.setInterval = (() => {
       setCalled = true;
       return 0 as any;
-    };
+    }) as any; // TypeScript complains about a __promisify__ property
     global.clearInterval = () => {
       clearCalled = true;
     };

From 0dd9d7a37d900ce864ce2ef8ff643ed6a5573d17 Mon Sep 17 00:00:00 2001
From: Nicholas Jamieson <nicholas@cartant.com>
Date: Mon, 5 Jul 2021 18:29:51 +1000
Subject: [PATCH 3/3] chore: add optional shenanigans

---
 spec/Subscriber-spec.ts            | 2 +-
 spec/operators/shareReplay-spec.ts | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/spec/Subscriber-spec.ts b/spec/Subscriber-spec.ts
index 079c272b64..72169b83b9 100644
--- a/spec/Subscriber-spec.ts
+++ b/spec/Subscriber-spec.ts
@@ -262,7 +262,7 @@ describe('Subscriber', () => {
       const subscription = of(42).subscribe(observer);
 
       observer = undefined;
-      global.gc();
+      global.gc?.();
     });
 
   } else {
diff --git a/spec/operators/shareReplay-spec.ts b/spec/operators/shareReplay-spec.ts
index 080aea9006..86f115232d 100644
--- a/spec/operators/shareReplay-spec.ts
+++ b/spec/operators/shareReplay-spec.ts
@@ -382,7 +382,7 @@ describe('shareReplay', () => {
       shared.subscribe(callback);
 
       callback = undefined;
-      global.gc();
+      global.gc?.();
     });
   } else {
     console.warn(`No support for FinalizationRegistry in Node ${process.version}`);