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Jul 28th, 2016
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  1. function abs(Integer $x) {
  2. if $x < 0 { $x * -1 }
  3. else { $x }
  4. }
  5. $x = -3
  6. $x.abs == 3
  7. abs($x) == 3
  8. abs(-3) == 3
  9. -3.abs == 3
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