number of 1 bits solution

Author: smosco

number-of-1-bits/smosco.js

@@ -0,0 +1,21 @@
+/**
+ * @param {number} n
+ * @return {number}
+ */
+const hammingWeight = (n) => {
+  const binaryString = n.toString(2);
+  let oneCount = 0;
+
+  for (const bit of binaryString) {
+    if (bit === '1') {
+      oneCount += 1;
+    }
+  }
+
+  return oneCount;
+};
+
+// 다른 풀이
+// const hammingWeight = (n) => {
+//   return n.toString(2).split('1').length - 1;
+// };