[6kyu][algorithms] Find The Parity Outlier solution

You are given an array (which will have a length of at least 3, but
could be very large) containing integers. The array is either entirely
comprised of odd integers or entirely comprised of even integers except
for a single integer N. Write a method that takes the array as an
argument and returns this "outlier" N.

lib/findOUtlier/findOUtlier.ts

@@ -0,0 +1,19 @@
+// You are given an array(which will have a length of at least 3, but could be very large) containing integers.
+// The array is either entirely comprised of odd integers or entirely comprised of even integers except for a single integer 
+// N.Write a method that takes the array as an argument and returns this "outlier" N.
+//
+//
+// [2, 4, 0, 100, 4, 11, 2602, 36] -->  11 (the only odd number)
+
+// [160, 3, 1719, 19, 11, 13, -21] --> 160 (the only even number)
+//
+//
+
+
+export function findOUtlier(integers: number[]): number {
+
+  const isEvenNum = integers.filter(num => num % 2 == 0);
+  const isOddNum = integers.filter(num => num % 2 != 0);
+
+  return isEvenNum.length == 1 ? Number(isEvenNum) : Number(isOddNum);
+};