evalable6

query

0..20.grep($_>5)

result

(exit code 1) 
WARNINGS for /tmp/GjqJVYGGN8:
Useless use of ".." in expression "0..20.grep($_>5)" in sink context (line 1)
Use of uninitialized value of type Any in numeric context
  in block <unit> at /tmp/GjqJVYGGN8 line 1
Cannot use Bool as Matcher with '.grep'.  Did you mean to use $_ inside a block?
  in block <unit> at /tmp/GjqJVYGGN8 line 1