Course of Raku / Essentials / Creating and calling functions / Function parameters

Function parameters

Choose those options where the function signature is correct.

1	sub f($x) {. . .}
1	sub f() {. . .}	No parameters ia a valid situation.
1	sub f {. . .}	Parentheses are not required here.
0	sub f $x {. . .}	But they are required if there are parameters.
1	sub f($x, $y) {. . .}
0	sub f($x $y) {. . .}	Parameters are a comma-separated list.
1	sub f($x,$y) {. . .}	It is up to you to put or omit space between parameters.
1	sub f($y, $x) {. . .}	Parameters can have any names in any order.
0	sub f ($x), ($y) {. . .}	Non-existing syntax.