Pass all tests

MonsWriter · MonsWriter · commit e0e89356cf0f · 2023-03-08T16:40:31.000+06:00
diff --git a/12_findTheOldest/findTheOldest.js b/12_findTheOldest/findTheOldest.js
@@ -1,6 +1,20 @@
-const findTheOldest = function() {
-
-};
+const findTheOldest = function (array) {
+    return array.reduce((oldest, currentPerson) => {
+      const oldestAge = getAge(oldest.yearOfBirth, oldest.yearOfDeath);
+      const currentAge = getAge(
+        currentPerson.yearOfBirth,
+        currentPerson.yearOfDeath
+      );
+      return oldestAge < currentAge ? currentPerson : oldest;
+    });
+  };
+  
+  const getAge = function (birth, death) {
+    if (!death) {
+      death = new Date().getFullYear();
+    }
+    return death - birth;
+  };
 
 // Do not edit below this line
 module.exports = findTheOldest;
