Add and fixed isOdd.js

Author: JakeGerber

Maths/isOdd.js

@@ -1,21 +1,17 @@
-//Returns true if a number is odd, returns false if a number is even, and returns null if the number is a decimal.
+// Returns true if a number is odd, returns false if a number is even, and returns null if the number is a decimal.
 function isOdd (num) {
- 
- if (num < 0)
- {
+ if (num < 0) {
  num *= -1
  }
 
- if (Math.floor(num) !== num)
- {
+ if (Math.floor(num) !== num) {
  console.error('Decimal Value')
  return null
  }
 
- if (num % 2 === 1)
- {
+ if (num % 2 === 1) {
  return true
  }
 
-  return false
-}
+ return false
+}