> We don't know that! Sure we do. Or maybe you didn't that day, but it is easy to find out for sure. While companies (at least in the US) will never give a fo

> We don't know that! Sure we do. Or maybe you didn't that day, but it is easy to find out for sure. While companies (at least in the US) will never give a formal recommendation, they will always issue a statement that such and such person worked for them from date to date and the title(s) they held, if you ask. Sure, if they worked 8 years at Joe's Burger Shack as Senior IT, maybe that's not worth much. But if they worked multiple years with a senior/lead software engineer title at any recognizable company, you know they really did. As I said above we can't know if they did a great job or a mediocre job, but we do know for sure they held that job with that title for so many years and did at least a good enough job to not get fired from a software engineering role. Which in turn means they absolutely know how to write a loop over an array. Because even if they got rated "Just Barely Meets Expectations" for 8 years, that alone is enough to know they can loop over an array. Therefore, if your test indicates they can't do it, it is guaranteed that the test is flawed.