It varies. I don't think me as a PHP developer in the mid-00s would have discovered searching/sorting algorithms, binary search trees, Big-O, or any of the number theory material on my own. The trade-off is that I'd expect more out of the standard lib (as I've seen CS students totally unaware that things like binary search and quicksort are already in the standard lib and have more mature implementations).
That's all I can think of. Full disclosure: I was self-taught, tried to do CS formally and hated it, so I switched to mathematics.
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It varies. I don't think me as a PHP developer in the mid-00s would have discovered searching/sorting algorithms, binary search trees, Big-O, or any of the number theory material on my own. The trade-off is that I'd expect more out of the standard lib (as I've seen CS students totally unaware that things like binary search and quicksort are already in the standard lib and have more mature implementations).
That's all I can think of. Full disclosure: I was self-taught, tried to do CS formally and hated it, so I switched to mathematics.