-1 is returned from getNuclideHalfLife for unknown half-life's. phets…

…ims/build-a-nucleus#126.
phetsims · Aug 16, 2023 · 3aa5b60 · 3aa5b60 · zepumph · Aug 17, 2023
1 parent b28c449
commit 3aa5b60
Showing 1 changed file with 4 additions and 0 deletions.
diff --git a/js/AtomIdentifier.ts b/js/AtomIdentifier.ts
@@ -14377,10 +14377,14 @@ const AtomIdentifier = {
   },
 
   // Get the half-life of a nuclide with the specified number of protons and neutrons.
+  // Return -1 if the half-life data is missing.
   getNuclideHalfLife: function( numProtons: number, numNeutrons: number ): number | null | undefined {
     if ( !HalfLifeConstants[ numProtons ] ) {
       return undefined;
     }
+    else if ( HalfLifeConstants[ numProtons ][ numNeutrons ] === null ) {
+      return -1;
+    }
     return HalfLifeConstants[ numProtons ][ numNeutrons ];
   },