make sure every variable is defined before use it

lib/stomp.js

@@ -31,7 +31,7 @@ var net = require('net'),
 
 function parse_command(data) {
     var command,
-        this_string = data.toString('utf8', start=0, end=data.length);
+        this_string = data.toString('utf8', 0, data.length);
     command = this_string.split('\n');
     return command[0];
 };
@@ -70,9 +70,9 @@ function parse_frame(chunk) {
 
     command = parse_command(chunk);
     data = chunk.slice(command.length + 1, chunk.length);
-    data = data.toString('utf8', start=0, end=data.length);
+    data = data.toString('utf8', 0, data.length);
 
-    the_rest = data.split('\n\n');
+    var the_rest = data.split('\n\n');
     headers = parse_headers(the_rest[0]);
     body = the_rest.slice(1, the_rest.length);
 
@@ -300,7 +300,7 @@ Stomp.prototype.disconnect = function() {
  * @param {Object} headers
  */
 Stomp.prototype.subscribe = function(headers) {
-    var self = this;
+    var self = this,
     destination = headers['destination'];
     headers['session'] = self.session;
     send_command(this, 'SUBSCRIBE', headers);
@@ -313,7 +313,7 @@ Stomp.prototype.subscribe = function(headers) {
  * @param {Object} headers
  */
 Stomp.prototype.unsubscribe = function(headers) {
-    var self = this;
+    var self = this,
     destination = headers['destination'];
     headers['session'] = self.session;
     send_command(this, 'UNSUBSCRIBE', headers);
@@ -370,8 +370,8 @@ Stomp.prototype.abort = function(transaction_id) {
  * @return {Object} Frame object of message sent
  */
 Stomp.prototype.send = function(headers, want_receipt) {
-    var self = this;
-    destination = headers['destination'];
+    var self = this,
+    destination = headers['destination'],
     body = headers['body'] || null;
     delete headers['body'];
     headers['session'] = self.session;