From 3bdee5ac6c43b554ee2d9dda65845271d1634a2b Mon Sep 17 00:00:00 2001
From: byol-han <byolhandev@gmail.com>
Date: Mon, 30 Jun 2025 01:31:50 -0700
Subject: [PATCH] counting bits solution

---
 counting-bits/byol-han.js | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)
 create mode 100644 counting-bits/byol-han.js

diff --git a/counting-bits/byol-han.js b/counting-bits/byol-han.js
new file mode 100644
index 000000000..b51c16f66
--- /dev/null
+++ b/counting-bits/byol-han.js
@@ -0,0 +1,16 @@
+/**
+ * https://leetcode.com/problems/counting-bits/submissions/1681218194/
+ * @param {number} n
+ * @return {number[]}
+ */
+var countBits = function (n) {
+  const ans = [];
+  for (let i = 0; i <= n; i++) {
+    // Convert i to binary with i.toString(2)
+    // Count 1s by splitting into chars, filtering '1', and getting length
+    const binary = i.toString(2);
+    const onesCount = binary.split('').filter((bit) => bit === '1').length;
+    ans.push(onesCount);
+  }
+  return ans;
+};