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Node.js Essential Training
Illustration by Richard Downs

Installing Node.js via Node Version Manager on Ubuntu Linux


From:

Node.js Essential Training

with Joseph LeBlanc

Video: Installing Node.js via Node Version Manager on Ubuntu Linux

NVM is a multi-platform tool, for installing Node. Since NodeJS.org does not offer pre-compiled binaries for Linux, NVM provides a more convenient alternative, to compiling Node, manually. Let's install NVM now and then use it to install Node. I'm at the NVM homepage on GitHub and I'm scrolling down, to the installation section. It's saying, we're going to need to have Git and cURL installed, in order to install NVM. So lets go to terminal and install these two commands now.
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  1. 3m 9s
    1. Welcome
      42s
    2. What you should know before watching this course
      57s
    3. Using the exercise files
      47s
    4. Using the challenges
      43s
  2. 18m 50s
    1. Why use Node.js?
      2m 1s
    2. Choosing a Node.js installation process
      4m 56s
    3. Installing Node.js on the Mac
      2m 5s
    4. Installing Node.js on Windows
      1m 43s
    5. Installing Node.js via Node Version Manager on Ubuntu Linux
      4m 45s
    6. Installing Node.js via Node Version Manager on a Mac
      3m 20s
  3. 13m 54s
    1. Exploring language additions to the V8 JavaScript engine
      3m 38s
    2. Understanding require() and modules
      6m 39s
    3. Understanding callback execution in the event loop
      3m 37s
  4. 12m 23s
    1. Initializing Node.js projects
      2m 37s
    2. Finding an NPM
      3m 30s
    3. Maintaining projects using the npm command
      6m 16s
  5. 21m 4s
    1. Creating modules with getters and setters
      6m 33s
    2. Understanding module caching and scopes
      6m 15s
    3. Implementing JavaScript creational patterns
      5m 8s
    4. Challenge: Leveraging module caching
      55s
    5. Solution: Leveraging module caching
      2m 13s
  6. 32m 27s
    1. Starting Express applications
      3m 42s
    2. Handling GET requests returning JSON
      3m 26s
    3. Navigating large datasets using request variables in routes
      5m 4s
    4. Modifying data through PUT requests
      4m 32s
    5. Supplying middleware to modify HTTP response headers
      4m 37s
    6. Generating HTML views in Jade
      8m 9s
    7. Challenge: List all records as JSON
      37s
    8. Solution: List all records as JSON
      2m 20s
  7. 25m 37s
    1. Evaluating unit testing methodologies
      3m 8s
    2. Isolating existing code for testing
      6m 47s
    3. Supplying helpers for test data
      2m 35s
    4. Writing unit tests with Mocha
      6m 5s
    5. Simulating HTTP requests with SuperTest
      7m 2s
  8. 28m 45s
    1. Connecting to MongoDB via Mongoose
      4m 16s
    2. Defining schemas for collections in Mongoose
      3m 47s
    3. Querying MongoDB collections
      5m 32s
    4. Persisting Express sessions through MongoDB and mongo-connect
      7m 6s
    5. Logging in to Express applications using Passport
      8m 4s
  9. 21m 47s
    1. Controlling the built-in REPL
      4m 18s
    2. Constructing a custom REPL
      5m 40s
    3. Receiving command-line arguments with Optimist
      6m 14s
    4. Building command-line tools
      3m 35s
    5. Challenge: Launch a custom REPL from a command
      41s
    6. Solution: Launch a custom REPL from a command
      1m 19s
  10. 15m 46s
    1. Emitting events and attaching listeners
      5m 32s
    2. Streaming chunked data through readable streams
      2m 33s
    3. Controlling readable streams
      1m 52s
    4. Piping readable data into writable streams
      2m 10s
    5. Handling duplex streams over TCP
      3m 39s
  11. 4m 6s
    1. Deploying projects to cloud hosting services
      2m 36s
    2. Finding Node.js resources
      1m 30s

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Node.js Essential Training
3h 17m Intermediate Oct 16, 2013

Viewers: in countries Watching now:

Node.js is a powerful tool for controlling web servers, building applications, and creating event-driven programming. And it brings JavaScript—a language familiar to all web developers—into an environment independent of web browsers. Learn all about Node.js and start creating JavaScript applications in this course with Joseph LeBlanc. He shows how to install Node.js on Mac, Windows, and Linux and dives deep into its modules and Express framework for app development. Learn how to unit test your code, start sessions on web servers, stream data, and create simple command-line tools.

Topics include:
  • Why use Node.js?
  • Installing Node.js
  • Understanding the event loop
  • Initializing Node.js projects
  • Creating modules with getters and setters
  • Starting Express applications
  • Testing your code
  • Working with sessions and databases
  • Building command-line tools
  • Emitting events and attaching listeners
  • Controlling readable streams
Subjects:
Developer Servers Cloud Computing Programming Languages
Software:
JavaScript Node.js
Author:
Joseph LeBlanc

Installing Node.js via Node Version Manager on Ubuntu Linux

NVM is a multi-platform tool, for installing Node. Since NodeJS.org does not offer pre-compiled binaries for Linux, NVM provides a more convenient alternative, to compiling Node, manually. Let's install NVM now and then use it to install Node. I'm at the NVM homepage on GitHub and I'm scrolling down, to the installation section. It's saying, we're going to need to have Git and cURL installed, in order to install NVM. So lets go to terminal and install these two commands now.

To install Git, I'm going to type sudo apt-git and then, install git. If it prompts you to install any dependencies, just say yes to install them. And now I'm going to do the same for cURL. I'm pressing the up arrow on my keyboard, and now I'm just replacing Git with cURL. So now I have Git and cURL, installed on this computer. So now with those two commands ready to go, I'm going to copy the install command and paste it in. So I'm going to go back to Firefox and I'm going to copy this entire line, and then I'm going to go back to terminal, and paste it in.

So now at the bottom of the screen, it's saying close and reopen your terminal, to start using NVM. It's also saying that, it appended the source string to home/josephleblanc/.profile. Now typically, this would work, I'd be able to log out of terminal and log back in and NVM would be ready to go. However, the code that it added. profile on this particular version of Ubuntu, is never executing, when I re-open terminal. So what I'm going to need to do is, copy that code from the bottom of. profile and move it to. bashrc .

So to do that, I'm going to type in more, space,. profile, and then I'm going to press Return, and then I'm going to copy this final line and I'm going to paste it into bashrc. I'm going to use the Pico text editor, to edit bashrc. So I'm going to type pico, space and then. bashrc . So I'm going to go all the way to the end of the file, and then just paste that command in. Now I'm going to press Ctrl+O to write out and to save. And now I'm also going to press Ctrl+X, to get out of Pico.

So now that command has been added to bashrc. Now I'm going to close out Terminal and reopen it. So now I'm going to type NVM. So NVM has been installed and it's ready to go. Now that I have NVM, I'm going to install Node, through NVM. So to do that, I'm going to type NVM, space, install, and now I'm going to specify the version number of Node, that I want to install. In this case, I want to install 0.10, and you don't have to specify the latest patch number, NVM's going to automatically pull the very latest.

So in the last line here, it says we're now using Node version 0.10.18. If I type in Node, it's going to pull up the interpreter, and if I press Ctrl+C two times, it brings me back to the command prompt. I can also switch versions of Node. To do that, let's install another version of Node. I'm going to install version 0.8. So I'm going to type NVM, space, install, and 0.8. So now I'm using Node version 0.8.25. If I do Node, space, dash, dash version, it shows that I'm using 0.8.

If I want to go back to version 0.10, all I have to do, is type NVM use 0.10. Now, one thing to do before I close out this terminal window, is I want to set version 0.10 as my default version. If you don't set a default version, each time you open up the terminal window, you're not going to have Node. So to do that, I'm going to type NVM and then alias, and then I'm going to type default and then finally, 0.10.

So this has now set the default version of Node to 0.10, so I can close this terminal window and then, open up a new one, I can type in Node and then dash, dash version, and it'll show that it's running version 0.10.18. Now, there's another thing to note about Linux. Your distribution may have a way of installing Node through the operating system's package manager. While this is generally a faster way of getting Node installed on Linux, you're only able to install the version supported by the package manager.

I personally prefer to use NVM, so I can always specify the exact version, I want to use. This way, I don't have to wait for the operating system vendor to update their packages, when an update comes out. NVM gives you the flexibility of selecting the exact version of Node you want to use, as well as the ability to easily switch versions. After making sure cURL and Git are available, NVM can be installed, with one line of commands.

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