new class js -advanced

02_advanced/MATERIAL/advanced-js/lesson_02/solutions/findMax/index.js

@@ -0,0 +1,19 @@
+function findMax(arr) {
+  // Base case: empty array
+  if (arr.length === 0) {
+    return null;
+  }
+  // Base case: array with one element
+  if (arr.length === 1) {
+    return arr[0];
+  }
+  // Recursive case: return the maximum of the first element and the maximum of the rest of the array
+  const subMax = findMax(arr.slice(1));
+  return arr[0] > subMax ? arr[0] : subMax;
+}
+
+// Test cases
+console.log(findMax([1, 5, 3, 9, 2])); // => 9
+console.log(findMax([-10, -20, -3, -4])); // => -3
+console.log(findMax([42])); // => 42
+console.log(findMax([])); // => null