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mqttjs · Oct 19, 2021 · 2b5e31f · 2b5e31f
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diff --git a/README.md b/README.md
@@ -81,8 +81,8 @@ npm install mqtt --save
 For the sake of simplicity, let's put the subscriber and the publisher in the same file:
 
 ```js
-var mqtt = require('mqtt')
-var client  = mqtt.connect('mqtt://test.mosquitto.org')
+const mqtt = require('mqtt')
+const client  = mqtt.connect('mqtt://test.mosquitto.org')
 
 client.on('connect', function () {
   client.subscribe('presence', function (err) {
@@ -659,8 +659,8 @@ Support [WeChat Mini Program](https://mp.weixin.qq.com/). See [Doc](https://mp.w
 ## Example(js)
 
 ```js
-var mqtt = require('mqtt')
-var client = mqtt.connect('wxs://test.mosquitto.org')
+const mqtt = require('mqtt')
+const client = mqtt.connect('wxs://test.mosquitto.org')
 ```
 
 ## Example(ts)
@@ -677,8 +677,8 @@ Surport [Ali Mini Program](https://open.alipay.com/channel/miniIndex.htm). See [
 ## Example(js)
 
 ```js
-var mqtt = require('mqtt')
-var client = mqtt.connect('alis://test.mosquitto.org')
+const mqtt = require('mqtt')
+const client = mqtt.connect('alis://test.mosquitto.org')
 ```
 
 ## Example(ts)
@@ -711,7 +711,7 @@ gzip <browserMqtt.js | wc -c
 <a name="webpack"></a>
 ### Webpack
 
-Just like browserify, export MQTT.js as library. The exported module would be `var mqtt = xxx` and it will add an object in the global space. You could also export module in other [formats (AMD/CommonJS/others)](http://webpack.github.io/docs/configuration.html#output-librarytarget) by setting **output.libraryTarget** in webpack configuration.
+Just like browserify, export MQTT.js as library. The exported module would be `const mqtt = xxx` and it will add an object in the global space. You could also export module in other [formats (AMD/CommonJS/others)](http://webpack.github.io/docs/configuration.html#output-librarytarget) by setting **output.libraryTarget** in webpack configuration.
 
 ```javascript
 npm install -g webpack // install webpack
@@ -731,7 +731,7 @@ you can then use mqtt.js in the browser with the same api than node's one.
 <body>
 <script src="./browserMqtt.js"></script>
 <script>
-  var client = mqtt.connect() // you add a ws:// url here
+  const client = mqtt.connect() // you add a ws:// url here
   client.subscribe("mqtt/demo")
 
   client.on("message", function (topic, payload) {

diff --git a/examples/client/simple-both.js b/examples/client/simple-both.js
@@ -3,7 +3,7 @@
 const mqtt = require('../..')
 const client = mqtt.connect()
 
-// or var client = mqtt.connect({ port: 1883, host: '192.168.1.100', keepalive: 10000});
+// or const client = mqtt.connect({ port: 1883, host: '192.168.1.100', keepalive: 10000});
 
 client.subscribe('presence')
 client.publish('presence', 'bin hier')

diff --git a/examples/client/simple-publish.js b/examples/client/simple-publish.js
@@ -1,7 +1,7 @@
-'use strict'
-
-const mqtt = require('../..')
-const client = mqtt.connect()
-
-client.publish('presence', 'hello!')
-client.end()
+'use strict'
+
+const mqtt = require('../..')
+const client = mqtt.connect()
+
+client.publish('presence', 'hello!')
+client.end()
diff --git a/examples/wss/client_with_proxy.js b/examples/wss/client_with_proxy.js
@@ -13,8 +13,8 @@ proxy: your proxy e.g. proxy.foo.bar.com
 port: http proxy port e.g. 8080
 */
 const proxy = process.env.http_proxy || 'http://<proxy>:<port>'
-const parsed = url.parse(endpoint)
-const proxyOpts = url.parse(proxy)
+const parsed = url.URL(endpoint)
+const proxyOpts = url.URL(proxy)
 // true for wss
 proxyOpts.secureEndpoint = parsed.protocol ? parsed.protocol === 'wss:' : true
 const agent = new HttpsProxyAgent(proxyOpts)