Number Of 1 Bits

Author: hyejjun

number-of-1-bits/hyejjun.js

@@ -0,0 +1,20 @@
+/**
+ * @param {number} n
+ * @return {number}
+ */
+var hammingWeight = function (n) {
+
+  let val = n.toString(2);
+
+  let res = 0;
+  [...val].forEach((val) => res += parseInt(val))
+
+  return res;
+
+};
+
+// O(LogN)
+
+console.log(hammingWeight(11));
+console.log(hammingWeight(128));
+console.log(hammingWeight(2147483645));