Comment by chadash

I've had the same experience. Everyone wants you to "just look at their resume". Meanwhile, I've interviewed plenty of people with great resumes who can't solve a simple problem like reversing a string [1].

If you can point me to extensive open-source experience on projects that roughly approximate professional coding, then fine, I'd be happy to walk through your code with you instead of doing an algorithmic problem. The issue is that that's a minority of developers... most people don't have the time or desire to do extensive open-source work outside of work hours and I don't blame them for it [2]! But given that resumes are unreliable, I need to test you somehow.

[1] No, I don't ever have to reverse strings at work. But I do have to write efficient code. And if you can't conceptualize how to reverse a string then you probably won't stand a chance at more difficult algorithmic issues I often come across.

[2] I don't recall who it was, but I once heard a very well-regarded chef say that he's tired after work and so he doesn't like to cook much at home. I have zero problem with a developer doing the same with coding! Go home and work on a hobby, spend time with your family, or smoke pot and watch netflix... I care about what you are capable of at work, not what you do with your free time.