Create smallest_even_multiple.js

Author: TheCoderSingh

smallest_even_multiple.js

@@ -0,0 +1,10 @@
+/**
+ * @param {number} n
+ * @return {number}
+ */
+var smallestEvenMultiple = function(n) {
+    if(n % 2 === 0)
+        return n;
+
+    return n * 2;
+};