Nested forEach not finding item

Can anyone tell me why this nested for loop does not match on 'Greetings', which is in the JSON it is passed (on the "second level").

I have a sample StackBlitz here, see the console.

    menuItems.forEach((firstLevel) => {
      if (firstLevel.items) {
        firstLevel.items.forEach((secondLevel) => {
          if (secondLevel.items) {
            secondLevel.items.forEach((thirdLevel) => {
              console.log('L3 processing ' + thirdLevel.label);
            });
            console.log('L2 processing ' + secondLevel.label);
    
            if (secondLevel.label === 'Greetings') {
              console.log('Found Greetings');
            }
          }
        });
      }
      console.log('L1 processing ' + firstLevel.label);
    });

Solution 1:

That's because your secondLevel iteration is asking for any "secondLevel" that has an items array, and the "Greetings" one does not have any "items" property