The values are integers only because it made enumerating easier. The string equality is intentional. The 1 .. n could have as easily been 'a' .. 'z'.
OK. But doesn't that make the ifelse code slower because it has to stringify and/or do string comparison, while the hash can do an integer comparison?
I did try another test. Since the values were integers I replaced the dispatch table hash with an array and performance improved, but not enough to catch the ifelse. I am still quite confused.
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