How can I pass any number of arguments to a function?

June 26, 2022

Here is what I’ve tried, but you’re hoping that when someone uses the function, they pass an array.

(defn make-sandwich
   [items]
   
   (print "I'll make you a great sandwich:")
   (each item items (print "Adding " item  " to your sandwich." ))
   (print "Your sandwich is ready!"))

(make-sandwich @["Chicken" "Cheddar Cheese" "Lettuce" "Salad Dressing"])

but I’m not sure that’s correct.

>Solution :

You don’t need to pass an array, you can use & array_name to accept any number of arguments:

(defn make-sandwich
   [& items]
   
   (print "I'll make you a great sandwich:")
   (each item items (print "Adding " item  " to your sandwich." ))
   (print "Your sandwich is ready!"))

(make-sandwich "Chicken" "Cheddar Cheese" "Lettuce" "Salad Dressing")

All the items passed will be stored in a tuple.