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  1. or download this
    print(( 0             ) ? qq{not false\n} : qq{false\n});# false
    print(( defined 0     ) ? qq{not false\n} : qq{false\n});# not false
    ...
    print(( ()            ) ? qq{not false\n} : qq{false\n});# false
    print(( []            ) ? qq{not false\n} : qq{false\n});# not false
    print(( {}            ) ? qq{not false\n} : qq{false\n});# not false
    
  2. or download this
    print(( "a" =~ m/a/ ) ? qq{not false\n} : qq{false\n});  # "not false"
    print(( "a" =~ m/b/ ) ? qq{not false\n} : qq{false\n});  # "false"
    ...
    print(( "a" eq "b" )  ? qq{not false\n} : qq{false\n});  # "false"
    print(( "a" !~ m/a/ ) ? qq{not false\n} : qq{false\n});  # "false"
    print(( "a" !~ m/b/ ) ? qq{not false\n} : qq{false\n});  # "not false"