fireship-io · codediodeio · May 21, 2020 · May 21, 2020
diff --git a/hugo/content/courses/javascript/deno-basics.md b/hugo/content/courses/javascript/deno-basics.md
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+---
+title: Deno Quickstart
+lastmod: 2020-05-20T04:58:32-07:00
+publishdate: 2020-05-20T04:58:32-07:00
+author: Jeff Delaney
+draft: false
+description: A new TypeScript-first JavaScript runtime
+tags: 
+    - node
+    - deno
+    - typescript
+
+weight: 41
+emoji: 🦕
+free: true
+featured_img: courses/javascript/img/deno-featured.png
+---
+
+{{< youtube F0G9lZ7gecE >}}
diff --git a/hugo/content/courses/javascript/img/demo-featured.png b/hugo/content/courses/javascript/img/demo-featured.png
diff --git a/hugo/content/courses/javascript/img/node-featured.png b/hugo/content/courses/javascript/img/node-featured.png
diff --git a/hugo/content/courses/javascript/node-basics.md b/hugo/content/courses/javascript/node-basics.md
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+---
+title: Node.js Quickstart
+lastmod: 2020-05-20T04:58:32-07:00
+publishdate: 2020-05-20T04:58:32-07:00
+author: Jeff Delaney
+draft: false
+description: Learn the basics of Node.js in 7 easy steps
+tags: 
+    - node
+
+weight: 40
+icon: node
+free: true
+featured_img: courses/javascript/img/node-featured.png
+chapter_start: Backend
+---
+
+{{< youtube ENrzD9HAZK4  >}}
+
+
+## Step 1 - What is Node?
+
+Node is a runtime that allows you to run JavaScript on the server. Learn more in the [how JavaScript works](https://fireship.io/courses/javascript/intro-how-js-works/) section of this course. 
+
+## Step 2 - Install Node
+
+Use Node Version Manager (NVM) to manage your installation. This course uses Node version 12, `nvm install 12`. 
+
+### Mac/Linux
+
+NVM for [Mac & Linux](https://github.com/nvm-sh/nvm). 
+
+### Windows
+
+NVM for [Windows](https://github.com/coreybutler/nvm-windows).  
+
+
+## Step 3 - Hello world
+
+Create a JavaScript file. 
+
+{{< file "js" "index.js" >}}
+```javascript
+console.log('hello world')
+```
+
+Run it with `node`. 
+
+{{< file "terminal" "command line" >}}
+```bash
+node . # points to index.js
+
+node index.js
+```
+
+## Step 4 - Builtins & Globals
+
+Node has several global variables that you should know about:
+
+- `global` use it to save global variable throughout the app. Similar to `window` in the browser. 
+- `process` interact with the current process to information like the OS platform or environment variables. 
+
+
+## Step 5 - Events & Emitters
+
+In most cases, you will find yourself listening to events and handling them with callbacks, but you can create your own events with an `EventEmitter`. 
+
+```javascript
+// Create
+const { EventEmitter } = require('events');
+const eventEmitter = new EventEmitter();
+
+// Handle
+eventEmitter.on('lunch', () => {
+
+    console.log('yum 🍣');
+
+});
+
+// Emit
+eventEmitter.emit('lunch');
+eventEmitter.emit('lunch');
+
+// yum 🍣
+// yum 🍣
+```
+## Step 6 - Work with the File System
+
+Many APIs in Node are callback based. 
+
+```javascript
+const { readFile, readFileSync } = require('fs');
+
+// Blocking!
+const txt = readFileSync('./hello.txt', 'utf8');
+console.log(txt)
+
+
+// Non-blocking
+readFile('./hello.txt', 'utf8', (err, txt) => {
+    console.log(txt)
+});
+
+// Promise based, also non-blocking
+const { readFile } = require('fs').promises;
+
+const txt = await readFile('./hello.txt', 'utf8');
+```
+
+## Step 7 - Modules and NPM
+
+A [module](/courses/javascript/concepts-modules/) is just a file that exports its code. 
+
+{{< file "js" "cool.js" >}}
+```javascript
+module.exports = {
+    hello: 'world'
+}
+```
+
+Another file can use this code by importing it. 
+
+```javascript
+const { hello } = require('./cool.js');
+
+console.log(hello);
+// world
+```
+
+
+Install remote modules by initializing an NPM project. 
+
+{{< file "terminal" "command line" >}}
+```text
+npm init -y
+
+npm install express
+```
+
+## Build a Full Stack Wep App
+
+### Use Express to create an HTTP endpoint
+
+Create an HTML file. 
+
+{{< file "html" "home.html" >}}
+```html
+<html>
+<head>
+    <title>Hi Mom!</title>
+</head>
+
+<body>
+    <h1>This is my web app!</h1>
+</body>
+```
+
+1. Use [express](https://expressjs.com/) to build an HTTP endpoint
+2. Read the HTML file
+3. Send it back to the client
+
+{{< file "js" "index.js" >}}
+```javascript
+const express = require('express');
+const app = express();
+const { readFile } = require('fs').promises;
+
+app.get('/', async (request, response) => {
+
+    response.send( await readFile('./home.html', 'utf8') );
+
+});
+
+app.listen(process.env.PORT || 3000, () => console.log(`App avaiable on http://localhost:3000`))
+```
+
+### Deploy the app to Google App Engine
+
+Create a Google Cloud account and install the [gcloud SDK](https://cloud.google.com/sdk). 
+
+Configure your server. 
+
+{{< file "yaml" "app.yaml" >}}
+```yaml
+runtime: nodejs12
+```
+
+Deploy it.
+
+{{< file "terminal" "command line" >}}
+```text
+gcloud app deploy
+```