... and Perl

• echo {“All work and no play makes Jack a dull boy. ” x 1000 };

• echo { `date` }; # (XSH has no back-ticks, but Perl does)

• echo { use Math::Trig; pi }; # lots of modules out there

• echo { literal(current()) =~ /foo/ }; # helper functions

• ls { current()->parentNode }; # DOM Layer 3 API

• echo { 1+1 == 2 }

• ...etc.