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Code Golf

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  • \$\begingroup\$ Doesn't s have to be either read from STDIN or supplied as a function argument? The challenge also specifies that the input may be given as an array of characters. Converting to a stabby lambda and dropping chars gives a 16-byte solution. \$\endgroup\$ Commented May 31, 2017 at 17:30
  • \$\begingroup\$ I wasn't really sure how the input was to be addressed, given that it wasn't explicitly specified. There are a few other answers that assume the existence of the input in a variable. Is there a codegolf convention? I don't do this much. \$\endgroup\$ Commented May 31, 2017 at 18:54
  • \$\begingroup\$ @sethrin With a stabby lambda wouldn't it be 20 chars? ->(s){[*' '..?~]-s)} \$\endgroup\$ Commented May 31, 2017 at 18:58
  • \$\begingroup\$ All of the parentheses in your lambda are optional. But I may have miscounted a byte. Other languages either accept input implicitly or have stdin bound to a global variable. In Ruby $< is a shortcut for stdin but lambdas tend to be shorter. The conventions on input and output are here. I also don't do this much, so if the rules aren't what I think do let me know. \$\endgroup\$ Commented May 31, 2017 at 21:27