Chapter 2: change back to use prettier

Chapter02/communicating-with-sockets/client.js

@@ -1,12 +1,12 @@
-const net = require('net')
+const net = require("net");
 
-const HOSTNAME = 'localhost'
+const HOSTNAME = "localhost";
-const PORT = 3000
+const PORT = 3000;
 
-const socket = net.connect(PORT, HOSTNAME)
+const socket = net.connect(PORT, HOSTNAME);
 
-socket.write('World')
+socket.write("World");
 
-socket.on('data', (data) => {
+socket.on("data", (data) => {
-  console.log(data.toString())
+  console.log(data.toString());
-})
+});

Chapter02/communicating-with-sockets/server.js

@@ -1,12 +1,14 @@
-const net = require('net')
+const net = require("net");
 
-const HOSTNAME = 'localhost'
+const HOSTNAME = "localhost";
-const PORT = 3000
+const PORT = 3000;
 
-net.createServer((socket) => {
+net
-  console.log('Client connected.')
+  .createServer((socket) => {
+    console.log("Client connected.");
 
-  socket.on('data', name => {
+    socket.on("data", (name) => {
-    socket.write(`Hello ${name}!`)
+      socket.write(`Hello ${name}!`);
+    });
   })
-}).listen(PORT, HOSTNAME)
+  .listen(PORT, HOSTNAME);

Chapter02/fetching-metadata/chmod-octal.js

@@ -1,4 +1,4 @@
-const fs = require('fs')
+const fs = require("fs");
-const file = './file.txt'
+const file = "./file.txt";
 
-fs.chmodSync(file, 0o664)
+fs.chmodSync(file, 0o664);

Chapter02/fetching-metadata/chmod.js

@@ -1,7 +1,11 @@
-const fs = require('fs')
+const fs = require("fs");
-const file = './file.txt'
+const file = "./file.txt";
 
-fs.chmodSync(file,
+fs.chmodSync(
-  fs.constants.S_IRUSR | fs.constants.S_IWUSR |
+  file,
-  fs.constants.S_IRGRP | fs.constants.S_IWGRP |
+  fs.constants.S_IRUSR |
-  fs.constants.S_IROTH)
+    fs.constants.S_IWUSR |
+    fs.constants.S_IRGRP |
+    fs.constants.S_IWGRP |
+    fs.constants.S_IROTH
+);

Chapter02/fetching-metadata/metadata.js

@@ -1,9 +1,9 @@
-const fs = require('fs')
+const fs = require("fs");
-const file = process.argv[2]
+const file = process.argv[2];
 
-function printMetadata (file) {
+function printMetadata(file) {
-  const fileStats = fs.statSync(file)
+  const fileStats = fs.statSync(file);
-  console.log(fileStats)
+  console.log(fileStats);
 }
 
-printMetadata(file)
+printMetadata(file);

Chapter02/fetching-metadata/metadata2.js

@@ -1,13 +1,13 @@
-const fs = require('fs')
+const fs = require("fs");
-const file = process.argv[2]
+const file = process.argv[2];
 
-function printMetadata (file) {
+function printMetadata(file) {
   try {
-    const fileStats = fs.statSync(file)
+    const fileStats = fs.statSync(file);
-    console.log(fileStats)
+    console.log(fileStats);
   } catch (err) {
-    console.error('Error reading file path:', file)
+    console.error("Error reading file path:", file);
   }
 }
 
-printMetadata(file)
+printMetadata(file);

Chapter02/file-watching/watch.js

@@ -1,6 +1,6 @@
-const fs = require('fs')
+const fs = require("fs");
-const file = './file.txt'
+const file = "./file.txt";
 
 fs.watchFile(file, (current, previous) => {
-  return console.log(`${file} updated ${time}`)
+  return console.log(`${file} updated ${time}`);
-})
+});

Chapter02/file-watching/watch2.js

@@ -1,8 +1,8 @@
-const fs = require('fs')
+const fs = require("fs");
-const file = './file.txt'
+const file = "./file.txt";
-const moment = require('moment')
+const moment = require("moment");
 
 fs.watch(file, (eventType, filename) => {
-  const time = moment().format('MMMM Do YYYY, h:mm:ss a')
+  const time = moment().format("MMMM Do YYYY, h:mm:ss a");
-  return console.log(`${filename} updated ${time}`)
+  return console.log(`${filename} updated ${time}`);
-})
+});

Chapter02/interfacing-with-io/greeting.js

@@ -1,4 +1,4 @@
-process.stdin.on('data', data => {
+process.stdin.on("data", (data) => {
-  const name = data.toString().trim().toUpperCase()
+  const name = data.toString().trim().toUpperCase();
-  process.stdout.write(`Hello ${name}!`)
+  process.stdout.write(`Hello ${name}!`);
-})
+});

Chapter02/interfacing-with-io/greeting2.js

@@ -1,8 +1,8 @@
-process.stdin.on('data', data => {
+process.stdin.on("data", (data) => {
-  const name = data.toString().trim().toUpperCase()
+  const name = data.toString().trim().toUpperCase();
-  if (name !== '') {
+  if (name !== "") {
-    process.stdout.write(`Hello ${name}!`)
+    process.stdout.write(`Hello ${name}!`);
   } else {
-    process.stderr.write('Input was empty.')
+    process.stderr.write("Input was empty.");
   }
-})
+});

Chapter02/working-with-files/callback-hell.js

@@ -1,5 +1,5 @@
 first(args, function () {
   second(args, function () {
-    third(args, function () {})
+    third(args, function () {});
-  })
+  });
-})
+});

Chapter02/working-with-files/readWriteAsync.js

@@ -1,16 +1,16 @@
-const fs = require('fs')
+const fs = require("fs");
-const path = require('path')
+const path = require("path");
 
-const filepath = path.join(process.cwd(), 'hello.txt')
+const filepath = path.join(process.cwd(), "hello.txt");
 
-fs.readFile(filepath, 'utf8', function (err, contents) {
+fs.readFile(filepath, "utf8", function (err, contents) {
   if (err) {
-    return console.log(err)
+    return console.log(err);
   }
-  console.log('File Contents:', contents)
+  console.log("File Contents:", contents);
-  const upperContents = contents.toUpperCase()
+  const upperContents = contents.toUpperCase();
   fs.writeFile(filepath, upperContents, function (err) {
-    if (err) throw err
+    if (err) throw err;
-    console.log('File updated.')
+    console.log("File updated.");
-  })
+  });
-})
+});

Chapter02/working-with-files/readWriteAsync2.js

@@ -1,22 +1,22 @@
-const fs = require('fs')
+const fs = require("fs");
-const path = require('path')
+const path = require("path");
 
-const filepath = path.join(process.cwd(), 'hello.txt')
+const filepath = path.join(process.cwd(), "hello.txt");
 
-fs.readFile(filepath, 'utf8', function (err, contents) {
+fs.readFile(filepath, "utf8", function (err, contents) {
   if (err) {
-    return console.log(err)
+    return console.log(err);
   }
-  console.log('File Contents:', contents)
+  console.log("File Contents:", contents);
-  const upperContents = contents.toUpperCase()
+  const upperContents = contents.toUpperCase();
-  setTimeout(() => updateFile(filepath, upperContents), 10)
+  setTimeout(() => updateFile(filepath, upperContents), 10);
-})
+});
 
 function updateFile(filepath, contents) {
   fs.writeFile(filepath, contents, function (err) {
-    if (err) throw err
+    if (err) throw err;
-    console.log('File updated.')
+    console.log("File updated.");
-  })
+  });
 }
 
-setInterval(() => process.stdout.write('**** \n'), 1).unref()
+setInterval(() => process.stdout.write("**** \n"), 1).unref();

Chapter02/working-with-files/readWritePromise.js

@@ -1,15 +1,15 @@
-const fs = require('fs').promises
+const fs = require("fs").promises;
-const path = require('path')
+const path = require("path");
 
-const filepath = path.join(process.cwd(), 'hello.txt')
+const filepath = path.join(process.cwd(), "hello.txt");
 
-async function run () {
+async function run() {
   try {
-    const contents = await fs.readFile(filepath, 'utf8')
+    const contents = await fs.readFile(filepath, "utf8");
-    console.log('File Contents:', contents)
+    console.log("File Contents:", contents);
   } catch (error) {
-    console.error(error)
+    console.error(error);
   }
 }
 
-run()
+run();

Chapter02/working-with-files/readWriteSync.js

@@ -1,11 +1,11 @@
-const fs = require('fs')
+const fs = require("fs");
-const path = require('path')
+const path = require("path");
 
-const filepath = path.join(process.cwd(), 'hello.txt')
+const filepath = path.join(process.cwd(), "hello.txt");
 
-const contents = fs.readFileSync(filepath, 'utf8')
+const contents = fs.readFileSync(filepath, "utf8");
-console.log('File Contents:', contents)
+console.log("File Contents:", contents);
 
-const upperContents = contents.toUpperCase()
+const upperContents = contents.toUpperCase();
-fs.writeFileSync(filepath, upperContents)
+fs.writeFileSync(filepath, upperContents);
-console.log('File updated.')
+console.log("File updated.");