Clarified COUNT's behavior. scan() now will run until cursor reaches 0.

Author: Jeremiah Lee Cohick

examples/scan.js

@@ -15,19 +15,21 @@ function scan() {
             cursor = res[0];
 
             // From <http://redis.io/commands/scan>:
-            // An iteration starts when the cursor is set to 0,
-            // and terminates when the cursor returned by the server is 0.
+            // "An iteration starts when the cursor is set to 0,
+            // and terminates when the cursor returned by the server is 0."
             if (cursor === '0') {
                 return console.log('Iteration complete');
             } else {
-                // Remember, more keys than COUNT or no keys may be returned
+                // Remember: more or less than COUNT or no keys may be returned
                 // See http://redis.io/commands/scan#the-count-option
+                // Also, SCAN may return the same key multiple times
+                // See http://redis.io/commands/scan#scan-guarantees
+
                 if (res[1].length > 0) {
-                    return console.log('Array of matching keys', res[1]);
-                } else {
-                    // No keys were returned in this scan, but more keys exist.
-                    return scan();
+                    console.log('Array of matching keys', res[1]);
                 }
+
+                return scan();
             }
         }
     );