Function callIfFn

src/ts-default/Backgrounds/Lightfall/Lightfall.tsx:341–346

(obj: unknown, key: string)

        container.removeChild(canvas);
      }
      const callIfFn = (obj: unknown, key: string) => {
        const fn = obj && (obj as Record<string, unknown>)[key];
        if (typeof fn === 'function') {
          (fn as () => void).call(obj);
        }
      };
      callIfFn(programRef.current, 'remove');
      callIfFn(geometryRef.current, 'remove');
      callIfFn(meshRef.current, 'remove');