added initial keys.js

keys.js

+use popplet;
+
+canHaveChildren = function (v) {
+  var isArray = ( v && 
+                  typeof v === 'object' && 
+                  typeof v.length === 'number' && 
+                  !(v.propertyIsEnumerable('length')));
+
+  var isObject = typeof v === 'object';
+  return isArray || isObject;
+}
+db.system.js.save( { _id : "canHaveChildren", value : canHaveChildren } );
+
+mapRecursive = function(parentKey, keys){
+  for (var key in keys) {
+		var value = keys[key];
+		
+		key = key.replace(/\d+/g,'XX');
+
+    emit({"key": parentKey + "." + key, "typee": typeof value}, {occurrences: 1});
+
+    if (canHaveChildren(value)) {
+      mapRecursive(parentKey + "." + key, value);
+    }
+  }
+}
+db.system.js.save({_id: "mapRecursive", value: mapRecursive});
+
+map = function() {
+	var keys = this;
+
+  for (var key in keys) {
+		var value = keys[key];
+		
+		key = key.replace(/\d+/g,'XX');
+
+    emit({"key": key, "typee": typeof value}, {occurrences: 1});
+
+    if (canHaveChildren(value)) {
+      mapRecursive(key, value);
+    }
+  }
+}
+
+reduce = function(key, values){
+	var occurrences = 0;
+	values.forEach(function(value) {
+		occurrences += value.occurrences;
+	});
+
+	return {occurrences: occurrences};
+}
+
+finalize = function(key, value) {
+	value.percentage = value.occurrences / 1000 * 100.0;
+	return value;
+}
+
+db.usersKeyNames.drop();
+db.users.mapReduce(map, reduce, { finalize: finalize, 
+                                  out: 'usersKeyNames',
+                                  verbose: true, 
+                                  limit: 1000, 
+                                  sort: {_id: -1}});
+db.usersKeyNames.find()
+
+