solve: Week 03 number of 1 bits

Author: eunice-hong

number-of-1-bits/eunice-hong.ts

@@ -0,0 +1,7 @@
+function hammingWeight(n: number): number {
+  // 1. convert the number to a binary string
+  const binaryString = n.toString(2);
+
+  // 2. count the number of 1s in the binary string
+  return binaryString.split("").filter((char) => char === "1").length;
+}