diff --git a/tutorial/nodejs/NodeClient.js b/tutorial/nodejs/NodeClient.js
index b4886e8..e4e92cc 100644
--- a/tutorial/nodejs/NodeClient.js
+++ b/tutorial/nodejs/NodeClient.js
@@ -17,47 +17,44 @@
  * under the License.
  */
 
-var thrift = require('thrift');
-var Calculator = require('./gen-nodejs/Calculator');
-var ttypes = require('./gen-nodejs/tutorial_types');
-const assert = require('assert');
+var thrift = require("thrift");
+var Calculator = require("./gen-nodejs/Calculator");
+var ttypes = require("./gen-nodejs/tutorial_types");
+const assert = require("assert");
 
 var transport = thrift.TBufferedTransport;
 var protocol = thrift.TBinaryProtocol;
 
 var connection = thrift.createConnection("localhost", 9090, {
-  transport : transport,
-  protocol : protocol
+  transport: transport,
+  protocol: protocol,
 });
 
-connection.on('error', function(err) {
+connection.on("error", function (err) {
   assert(false, err);
 });
 
 // Create a Calculator client with the connection
 var client = thrift.createClient(Calculator, connection);
 
-
-client.ping(function(err, response) {
-  console.log('ping()');
+client.ping(function (err, response) {
+  console.log("ping()");
 });
 
-
-client.add(1,1, function(err, response) {
+client.add(1, 1, function (err, response) {
   console.log("1+1=" + response);
 });
 
-
 work = new ttypes.Work();
 work.op = ttypes.Operation.DIVIDE;
 work.num1 = 1;
 work.num2 = 0;
 
-client.calculate(1, work, function(err, message) {
+client.calculate(1, work, function (err, message) {
   if (err) {
     console.log("InvalidOperation " + err);
   } else {
-    console.log('Whoa? You know how to divide by zero?');
+    console.log("Whoa? You know how to divide by zero?");
   }
 });
 
@@ -65,11 +62,11 @@
 work.num1 = 15;
 work.num2 = 10;
 
-client.calculate(1, work, function(err, message) {
-  console.log('15-10=' + message);
+client.calculate(1, work, function (err, message) {
+  console.log("15-10=" + message);
 
-  client.getStruct(1, function(err, message){
-    console.log('Check log: ' + message.value);
+  client.getStruct(1, function (err, message) {
+    console.log("Check log: " + message.value);
 
     //close the connection once we're done
     connection.end();
diff --git a/tutorial/nodejs/NodeClientPromise.js b/tutorial/nodejs/NodeClientPromise.js
index e6ff2d7..0ba5f4f 100644
--- a/tutorial/nodejs/NodeClientPromise.js
+++ b/tutorial/nodejs/NodeClientPromise.js
@@ -17,64 +17,62 @@
  * under the License.
  */
 
-var thrift = require('thrift');
-var Calculator = require('./gen-nodejs/Calculator');
-var ttypes = require('./gen-nodejs/tutorial_types');
-const assert = require('assert');
+var thrift = require("thrift");
+var Calculator = require("./gen-nodejs/Calculator");
+var ttypes = require("./gen-nodejs/tutorial_types");
+const assert = require("assert");
 
 var transport = thrift.TBufferedTransport;
 var protocol = thrift.TBinaryProtocol;
 
 var connection = thrift.createConnection("localhost", 9090, {
-  transport : transport,
-  protocol : protocol
+  transport: transport,
+  protocol: protocol,
 });
 
-connection.on('error', function(err) {
+connection.on("error", function (err) {
   assert(false, err);
 });
 
 // Create a Calculator client with the connection
 var client = thrift.createClient(Calculator, connection);
 
+client.ping().then(function () {
+  console.log("ping()");
+});
 
-client.ping()
-  .then(function() {
-    console.log('ping()');
-  });
-
-client.add(1,1)
-  .then(function(response) {
-	  console.log("1+1=" + response);
-  });
+client.add(1, 1).then(function (response) {
+  console.log("1+1=" + response);
+});
 
 work = new ttypes.Work();
 work.op = ttypes.Operation.DIVIDE;
 work.num1 = 1;
 work.num2 = 0;
 
-client.calculate(1, work)
-  .then(function(message) {
-	console.log('Whoa? You know how to divide by zero?');
+client
+  .calculate(1, work)
+  .then(function (message) {
+    console.log("Whoa? You know how to divide by zero?");
   })
-  .catch(function(err) {
+  .catch(function (err) {
     console.log("InvalidOperation " + err);
   });
 
-
 work.op = ttypes.Operation.SUBTRACT;
 work.num1 = 15;
 work.num2 = 10;
 
-client.calculate(1, work)
-  .then(function(value) {
-	  console.log('15-10=' + value);
-	  return client.getStruct(1);
+client
+  .calculate(1, work)
+  .then(function (value) {
+    console.log("15-10=" + value);
+    return client.getStruct(1);
   })
-  .then(function(message) {
-      console.log('Check log: ' + message.value);
+  .then(function (message) {
+    console.log("Check log: " + message.value);
   })
-  .finally(function() {
-	  //close the connection once we're done
-      connection.end();
+  .finally(function () {
+    //close the connection once we're done
+    connection.end();
   });
diff --git a/tutorial/nodejs/NodeServer.js b/tutorial/nodejs/NodeServer.js
index 2e19882..5181e51 100644
--- a/tutorial/nodejs/NodeServer.js
+++ b/tutorial/nodejs/NodeServer.js
@@ -25,17 +25,17 @@
 var data = {};
 
 var server = thrift.createServer(Calculator, {
-  ping: function(result) {
+  ping: function (result) {
     console.log("ping()");
     result(null);
   },
 
-  add: function(n1, n2, result) {
+  add: function (n1, n2, result) {
     console.log("add(", n1, ",", n2, ")");
     result(null, n1 + n2);
   },
 
-  calculate: function(logid, work, result) {
+  calculate: function (logid, work, result) {
     console.log("calculate(", logid, ",", work, ")");
 
     var val = 0;
@@ -49,7 +49,7 @@
       if (work.num2 === 0) {
         var x = new ttypes.InvalidOperation();
         x.whatOp = work.op;
-        x.why = 'Cannot divide by 0';
+        x.why = "Cannot divide by 0";
         result(x);
         return;
       }
@@ -57,28 +57,27 @@
     } else {
       var x = new ttypes.InvalidOperation();
       x.whatOp = work.op;
-      x.why = 'Invalid operation';
+      x.why = "Invalid operation";
       result(x);
       return;
     }
 
     var entry = new SharedStruct();
     entry.key = logid;
-    entry.value = ""+val;
+    entry.value = "" + val;
     data[logid] = entry;
 
     result(null, val);
   },
 
-  getStruct: function(key, result) {
+  getStruct: function (key, result) {
     console.log("getStruct(", key, ")");
     result(null, data[key]);
   },
 
-  zip: function() {
+  zip: function () {
     console.log("zip()");
-  }
-
+  },
 });
 
 server.listen(9090);
diff --git a/tutorial/nodejs/NodeServerPromise.js b/tutorial/nodejs/NodeServerPromise.js
index bff287b..ddd18f4 100644
--- a/tutorial/nodejs/NodeServerPromise.js
+++ b/tutorial/nodejs/NodeServerPromise.js
@@ -25,16 +25,16 @@
 var data = {};
 
 var server = thrift.createServer(Calculator, {
-  ping: function() {
+  ping: function () {
     console.log("ping()");
   },
 
-  add: function(n1, n2) {
+  add: function (n1, n2) {
     console.log("add(", n1, ",", n2, ")");
     return n1 + n2;
   },
 
-  calculate: function(logid, work) {
+  calculate: function (logid, work) {
     console.log("calculate(", logid, ",", work, ")");
 
     var val = 0;
@@ -48,33 +48,32 @@
       if (work.num2 === 0) {
         var x = new ttypes.InvalidOperation();
         x.whatOp = work.op;
-        x.why = 'Cannot divide by 0';
-		throw x;
+        x.why = "Cannot divide by 0";
+        throw x;
       }
       val = work.num1 / work.num2;
     } else {
       var x = new ttypes.InvalidOperation();
       x.whatOp = work.op;
-      x.why = 'Invalid operation';
+      x.why = "Invalid operation";
       throw x;
     }
 
     var entry = new SharedStruct();
     entry.key = logid;
-    entry.value = ""+val;
+    entry.value = "" + val;
     data[logid] = entry;
     return val;
   },
 
-  getStruct: function(key) {
+  getStruct: function (key) {
     console.log("getStruct(", key, ")");
     return data[key];
   },
 
-  zip: function() {
+  zip: function () {
     console.log("zip()");
-  }
-
+  },
 });
 
 server.listen(9090);