Can we use a closure within a closure in javascript?

Question

If I write something like below

function sum(x){
   return function(y){
       return function(z){
             return x + y + z;
}
}
}

and call it like sum(2)(3)(4) // output is 8

can we call the above function, an example of closure within a closure ???

Why to downvote...this term is not clear so I am asking to cummunity. — user2225263, May 02 '17 at 21:58
Of course, you can. This is called **currying** in functional programming. It is useful to reduce function arity. — Badacadabra, May 02 '17 at 22:07

score 0 · Accepted Answer · answered May 02 '17 at 21:59

0

Yes, it is an example of closure within a closure.

answered May 02 '17 at 21:59

user2225263

1 Answers1