From 9717acb7bb0f6254f50e24a0023add016db9a40b Mon Sep 17 00:00:00 2001
From: fudom <143608856+fudom@users.noreply.github.com>
Date: Tue, 10 Dec 2024 12:19:11 +0100
Subject: [PATCH 1/3] Create type-guards.ts

---
 core/src/utils/type-guards.ts | 6 ++++++
 1 file changed, 6 insertions(+)
 create mode 100644 core/src/utils/type-guards.ts

diff --git a/core/src/utils/type-guards.ts b/core/src/utils/type-guards.ts
new file mode 100644
index 00000000000..e5ea629954d
--- /dev/null
+++ b/core/src/utils/type-guards.ts
@@ -0,0 +1,6 @@
+/** 
+ * Checks input for usable number. Not NaN and not Infinite.
+ */
+export const isSafeNumber = (input: unknown): input is number => {
+  return typeof input === 'number' && !isNaN(input) && isFinite(input);
+};

From 4b41bb9ce32068293edaa7f06d33fd100231f986 Mon Sep 17 00:00:00 2001
From: fudom <143608856+fudom@users.noreply.github.com>
Date: Tue, 10 Dec 2024 12:29:38 +0100
Subject: [PATCH 2/3] Check for safe number

---
 core/src/utils/floating-point/index.ts | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/core/src/utils/floating-point/index.ts b/core/src/utils/floating-point/index.ts
index d8ed8570741..1e25ea37197 100644
--- a/core/src/utils/floating-point/index.ts
+++ b/core/src/utils/floating-point/index.ts
@@ -1,4 +1,7 @@
+import { isSafeNumber } from '../type-guards.ts';
+
 export function getDecimalPlaces(n: number) {
+  if (!isSafeNumber(n)) return 0;
   if (n % 1 === 0) return 0;
   return n.toString().split('.')[1].length;
 }
@@ -36,6 +39,7 @@ export function getDecimalPlaces(n: number) {
  * be used as a reference for the desired specificity.
  */
 export function roundToMaxDecimalPlaces(n: number, ...references: number[]) {
+  if (!isSafeNumber(n)) return 0;
   const maxPlaces = Math.max(...references.map((r) => getDecimalPlaces(r)));
   return Number(n.toFixed(maxPlaces));
 }

From 21e0f607ef67f1aa912d1f00bc67c48592101393 Mon Sep 17 00:00:00 2001
From: fudom <143608856+fudom@users.noreply.github.com>
Date: Tue, 10 Dec 2024 12:43:12 +0100
Subject: [PATCH 3/3] Update floating-point.spec.ts

---
 core/src/utils/floating-point/floating-point.spec.ts | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/core/src/utils/floating-point/floating-point.spec.ts b/core/src/utils/floating-point/floating-point.spec.ts
index 80db4138b5b..d52fbd0f9ca 100644
--- a/core/src/utils/floating-point/floating-point.spec.ts
+++ b/core/src/utils/floating-point/floating-point.spec.ts
@@ -11,6 +11,12 @@ describe('floating point utils', () => {
       const n = getDecimalPlaces(5);
       expect(n).toBe(0);
     });
+
+    it('should handle nullish values', () => {
+      expect(getDecimalPlaces(undefined as any)).toBe(0);
+      expect(getDecimalPlaces(null as any)).toBe(0);
+      expect(getDecimalPlaces(NaN as any)).toBe(0);
+    });
   });
 
   describe('roundToMaxDecimalPlaces', () => {
@@ -18,5 +24,11 @@ describe('floating point utils', () => {
       const n = roundToMaxDecimalPlaces(5.12345, 1.12, 2.123);
       expect(n).toBe(5.123);
     });
+
+    it('should handle nullish values', () => {
+      expect(roundToMaxDecimalPlaces(undefined as any)).toBe(0);
+      expect(roundToMaxDecimalPlaces(null as any)).toBe(0);
+      expect(roundToMaxDecimalPlaces(NaN as any)).toBe(0);
+    })
   });
 });