Simplify average

snippets/average.md

@@ -5,7 +5,7 @@ Returns the average of two or more numbers.
 Use `Array.reduce()` to add each value to an accumulator, initialized with a value of `0`, divide by the `length` of the array.
 
 ```js
-const average = (...nums) => [...nums].reduce((acc, val) => acc + val, 0) / nums.length;
+const average = (...nums) => nums.reduce((acc, val) => acc + val, 0) / nums.length;
 ```
 
 ```js