Code style fixes

Author: tshemsedinov

tcpServer/client.js

@@ -1,16 +1,17 @@
-var api = {};
-global.api = api;
+'use strict';
+
+global.api = {};
 api.net = require('net');
 
-var socket = new api.net.Socket();
-var user;
+let socket = new api.net.Socket();
+let user;
 
 socket.connect({
   port: 2000,
   host: '127.0.0.1',
-}, function() {
+}, () => {
   socket.write('Hello from client');
-  socket.on('data', function(data) {
+  socket.on('data', (data) => {
     user = JSON.parse(data);
     console.log('Data received (by client): ' + data);
     console.log('Age of ' + user.name + ' is ' + user.age);

tcpServer/server.js

@@ -1,13 +1,16 @@
-var api = {};
-global.api = api;
+'use strict';
+
+global.api = {};
 api.net = require('net');
 
-var user = { name: 'Marcus Aurelius', age: 1895 };
+let user = { name: 'Marcus Aurelius', age: 1895 };
 
-var server = api.net.createServer(function(socket) {
+let server = api.net.createServer((socket) => {
   socket.write(JSON.stringify(user));
   console.log('Connected: ' + socket.localAddress);
-  socket.on('data', function(data) {
+  socket.on('data', (data) => {
     console.log('Data received (by server): ' + data);
   });
-}).listen(2000);
+});
+
+server.listen(2000);

workers/master.js

@@ -1,15 +1,17 @@
+'use strict';
+
 module.exports = function() {
 
-  var cpuCount = api.os.cpus().length;
+  let cpuCount = api.os.cpus().length;
 
-  var workers = [];
-  for (var i = 0; i < cpuCount; i++) {
-    var worker = api.cluster.fork();
+  let workers = [];
+  for (let i = 0; i < cpuCount; i++) {
+    let worker = api.cluster.fork();
     workers.push(worker);
   }
 
-  var task = [2, 17, 3, 2, 5, 7, 15, 22, 1, 14, 15, 9, 0, 11];
-  var results = [];
+  let task = [2, 17, 3, 2, 5, 7, 15, 22, 1, 14, 15, 9, 0, 11];
+  let results = [];
 
   workers.forEach(function(worker) {
 

workers/multicore.js

@@ -1,3 +1,5 @@
+'use strict';
+
 global.api = {};
 api.cluster = require('cluster');
 api.os = require('os');

workers/worker.js

@@ -1,16 +1,15 @@
-module.exports = function() {
-	
+'use strict';
+
+module.exports = () => {
   console.log('Hello from worker ' + process.pid + ' ' + api.cluster.worker.id);
 
-  process.on('message', function (message) {
+  process.on('message', (message) => {
     console.log(
       'message to worker ' + process.pid +
       ' from master: ' + JSON.stringify(message)
     );
     process.send({
-      result: message.task.map(function(item) {
-        return item * 2;
-      })
+      result: message.task.map((item) => item * 2)
     });
   });