iburlakov/calc.js

Created November 25, 2015 21:53

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Revisions

iburlakov created this gist Nov 25, 2015.

calc.js

-Original file line number
+Diff line change
@@ -0,0 +1,12 @@
+    // calculate amount of 1 digits in given number
+    function calc(num) {
+      var digits = 0;
+      do {
+        if (num & 1) {
+          digits++;
+        }
+        num = num >>> 1
+      } while (num != 0);
+      return digits;
+    }