update the varibales names

update the Readme.md

Update amqplib dependency, run js-beautify and jshint on emit_log.js

run js-beautify and jshint on send.js, receive.js

run js-beautify and jshint on all js files

Author: slim-hmidi

javascript-nodejs/README.md

@@ -52,4 +52,4 @@ To install `amqp.node` using npm:
 [Tutorial six: RPC](https://www.rabbitmq.com/tutorials/tutorial-six-javascript.html):
 
     node src/rpc_server.js
-    node src/rpc_client.js
+    node src/rpc_client.js 30

javascript-nodejs/package-lock.json

@@ -3,6 +3,7 @@
   "version": "1.0.0",
   "description": "RabbitMQ amqp.node tutorial ",
   "dependencies": {
-    "amqplib": "^0.3.2"
+    "amqplib": "latest",
+    "js-beautify": "^1.9.1"
   }
 }

javascript-nodejs/package.json

@@ -2,15 +2,26 @@
 
 var amqp = require('amqplib/callback_api');
 
-amqp.connect('amqp://localhost', function(err, conn) {
-  conn.createChannel(function(err, ch) {
-    var ex = 'logs';
-    var msg = process.argv.slice(2).join(' ') || 'Hello World!';
+amqp.connect('amqp://localhost', function(error0, connection) {
+    if (error0) {
+        throw error0;
+    }
+    connection.createChannel(function(error1, channel) {
+        if (error1) {
+            throw error1;
+        }
+        var exchange = 'logs';
+        var msg = process.argv.slice(2).join(' ') || 'Hello World!';
 
-    ch.assertExchange(ex, 'fanout', {durable: false});
-    ch.publish(ex, '', new Buffer(msg));
-    console.log(" [x] Sent %s", msg);
-  });
+        channel.assertExchange(exchange, 'fanout', {
+            durable: false
+        });
+        channel.publish(exchange, '', Buffer.from(msg));
+        console.log(" [x] Sent %s", msg);
+    });
 
-  setTimeout(function() { conn.close(); process.exit(0) }, 500);
+    setTimeout(function() {
+        connection.close();
+        process.exit(0);
+    }, 500);
 });