fizzbuzz implmentation in javaScript

Author: namitmalasi

FizzBuzz.js

@@ -0,0 +1,42 @@
+// Approach 1(Naive)
+
+var fizzBuzz = function (n) {
+  let resultArray = [];
+
+  for (let i = 1; i <= n; i++) {
+    if (i % 3 === 0 && i % 5 === 0) {
+      resultArray[i - 1] = "FizzBuzz";
+    } else if (i % 5 === 0) {
+      resultArray[i - 1] = "Buzz";
+    } else if (i % 3 === 0) {
+      resultArray[i - 1] = "Fizz";
+    } else {
+      resultArray[i - 1] = i.toString();
+    }
+  }
+  return resultArray;
+};
+
+// Approach2(optimised)
+
+let fizzBuzz = (n) => {
+  let hashMap = new Map();
+  let arr = [];
+
+  hashMap.set(3, "Fizz");
+  hashMap.set(5, "Buzz");
+
+  for (let i = 1; i <= n; i++) {
+    let output = "";
+    for (let key of hashMap.keys()) {
+      if (i % key == 0) {
+        output += hashMap.get(key);
+      }
+    }
+    if (output == "") {
+      output = i.toString();
+    }
+    arr.push(output);
+  }
+  return arr;
+};