Number of 1 Bits solution

Author: kim-young

number-of-1-bits/kimyoung.js

@@ -0,0 +1,16 @@
+var hammingWeight = function (n) {
+  let bitVal = n.toString(2); // convert input value to bit
+  let setBits = 0;
+  for (const char of bitVal) { // iterate through the string bit value to check the number of "1"s
+    if (char === "1") setBits++; // increment if char === "1"
+  }
+  return setBits;
+};
+
+// test cases
+console.log(hammingWeight(11)); // 3
+console.log(hammingWeight(128)); // 1
+console.log(hammingWeight(2147483645)); // 30
+
+// space - O(1) - created only constant variables
+// time - O(n) - iterate through the bitVal string (larger the number the longer the string)