Add negative value check to formatFeetInches function

Copilot · dorkmo · Copilot · commit 4d1180f2c041 · 2025-11-22T19:36:33.000Z
Co-authored-by: dorkmo &lt;1923070+dorkmo@users.noreply.github.com&gt;
diff --git a/TankAlarm-112025-Viewer-BluesOpta/TankAlarm-112025-Viewer-BluesOpta.ino b/TankAlarm-112025-Viewer-BluesOpta/TankAlarm-112025-Viewer-BluesOpta.ino
@@ -402,7 +402,7 @@ static const char VIEWER_DASHBOARD_HTML[] PROGMEM = R"HTML(
       }
 
       function formatFeetInches(inches) {
-        if (typeof inches !== 'number' || !isFinite(inches)) return '--';
+        if (typeof inches !== 'number' || !isFinite(inches) || inches < 0) return '--';
         const feet = Math.floor(inches / 12);
         const remainingInches = inches % 12;
         return `${feet}' ${remainingInches.toFixed(1)}"`;

Original file line number	Diff line number	Diff line change
`@@ -402,7 +402,7 @@ static const char VIEWER_DASHBOARD_HTML[] PROGMEM = R"HTML(`
`402`	`402`	`}`
`403`	`403`
`404`	`404`	`function formatFeetInches(inches) {`
`405`		`- if (typeof inches !== 'number' \|\| !isFinite(inches)) return '--';`
	`405`	`+ if (typeof inches !== 'number' \|\| !isFinite(inches) \|\| inches < 0) return '--';`
`406`	`406`	`const feet = Math.floor(inches / 12);`
`407`	`407`	`const remainingInches = inches % 12;`
`408`	`408`	return `${feet}' ${remainingInches.toFixed(1)}"`;