It turns out that you could avoid the #downcase with string.count("xX") == string.count("oO")
#downcase
string.count("xX") == string.count("oO")
I don't know whether the performance would be significantly different, though it would avoid creating a couple of extra string instances.
There are some other interesting variations for #count, such as using it to count lower case letters with "abGvf".count("a-z")
#count
"abGvf".count("a-z")
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It turns out that you could avoid the
#downcasewithstring.count("xX") == string.count("oO")I don't know whether the performance would be significantly different, though it would avoid creating a couple of extra string instances.
There are some other interesting variations for
#count, such as using it to count lower case letters with"abGvf".count("a-z")