gistfile1.txt

                  | -1.abs() | let x = 1; -x.abs()
------------------+----------+---------------------
 C#               | -1       | -1
 D                | -1       | -1
 Dart             | -1       | -1
 Fantom           | -1       | -1
 Groovy           | -1       | -1
 Kitten           |  1       | n.a.
 JavaScript       | -1       | -1
 Nim              | -1       | -1
 Raku             | -1       | -1
 Ruby             |  1       | -1
 Rust             | -1       | -1
 Scala            |  1       | -1
 Smalltalk        |  1       | n.a.