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  • \$\begingroup\$ This can be 47 bytes, if truthy values can be False and falsy values True: TIO! \$\endgroup\$ Commented Jun 14, 2017 at 17:20
  • \$\begingroup\$ Could also use n-a in place of n==a and have -1 and 0 as your return values. \$\endgroup\$ Commented Jun 14, 2017 at 18:06
  • \$\begingroup\$ @carusocomputing I had that in my edit history, but it doesn't work, because for larger test values, you might have -101 or some other result instead of -1. \$\endgroup\$ Commented Jun 14, 2017 at 21:47
  • \$\begingroup\$ @Mr.Xcoder do you really think that saving 1 byte is worth everybody's sanity? \$\endgroup\$ Commented Jun 16, 2017 at 14:23
  • 1
    \$\begingroup\$ @frarugi87 Saving a byte is always worth it \$\endgroup\$ Commented Jun 16, 2017 at 14:25