working arrays - #170

There are a few small errors in this block. The logic is correct!

Line 5: That first curly brace shouldn't be there. It's closing off the counter function, so the return is cut out. Also, the return statement shouldn't wrapped in curly braces since that's being interpreted as an Object.

On line 12, you're invoking the counter function, but you aren't assigning the result to anything. The goal is to be able to invoke the function that's returned as a result of invoking counter(), so you could do something like this:

const newCounter = counter();

Since the counter function is returning an anonymous function, this line is effectively the same as this:

const newCounter = function() {
  counter = counter + 1;
  return counter;
}

but because of closure, newCounter will have access to the counter variable inside of the function! So then you can invoke newCounter and it will increment the counter variable.

console.log(newCounter()) // will print out 1
console.log(newCounter()) // will print out 2

I would also recommend naming the counter variable something different from the name of the function, for clarity.