Covering some basic topics I haven't seen elsewhere on Cody.
Return the number of punctuation characters in the input variable.
Trouble in the test suite :)
I think the problem is with Cody itself today. It's doing weird things. If you submit this solution again it fails.
Get the area codes from a list of phone numbers
Number of 1s in the Binary Representation of a Number
How many jokers?
07 - Common functions and indexing 4
Back to basics 25 - Valid variable names
Better bullseye matrix
Back to basics 10 - Max Float
Back to basics 5 - Clipboard
Back to basics 15 - classes
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