Function on clicked slot

[lolplomer]

How do i make that function remember the clicked item/slot?

command /shop-halloween-299 <text>:
    trigger:
        if arg 1 is "enchanter":
            open virtual chest inventory with size 5 named "&aHey" to player

on inventory click:
    if name of player's current inventory is "&aHey":
        cancel event
        if clicked item is not enchanted book:
            format gui slot 22 of player with clicked item
            if clicked item is bow:
                format gui slot 17 of player with enchanted book named "&eExplosive I" to run function enchant(Explosive I)"

function enchant(type: String):
    if {_type} is "Explosive I":
        return clicked item
        add lore of clicked item to "&eExplosive I"

I also dont know what return used for
[doublepost=1574085398,1573970700][/doublepost]bump

 

[Govindas]

you can return objects with "return", so like
function divideBy(var: number, divider: number) :: number:
set {_var} to {_var}/{_divider}
return {_var}

then you use it like this:
set {_var} to 10
set {_var} to divideBy({_var}, 10)
#{_var} will be 1 here

to be able to return in a function, you must add ":: <type>:" to end of it, also function cannot continue after it has returned something, so do not add any code after a return