Simplify isEven function

snippets/even-or-odd-number.md

@@ -1,9 +1,9 @@
 ### Even or odd number
 
-Use `Math.abs()` to extend logic to negative numbers, check using the modulo (`%`) operator.
-Return `true` if the number is even, `false` if the number is odd.
+Checks whether number is odd or even using the modulo (`%`) operator.
+Returns `true` if the number is even, `false` if the number is odd.
 
 ```js
-const isEven = num => Math.abs(num) % 2 === 0;
+const isEven = num => num % 2 === 0;
 // isEven(3) -> false
 ```