George-Hudson

Array Prototype Methods

I understand that functions in JavaScript can take any number of arguments.

• yes

I can describe the similarity between blocks in Ruby and anonymous functions in JavaScript.

• yes

Where are the methods available to all arrays (e.g. forEach, map, etc.) defined?

• Array.prototype MDN https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/prototype

George-Hudson

I can explain the difference between function declarations and function expressions.

• yes 3

I can explain what the value of this is in a normal function.

• yes 2

I can explain what the value of this is when called from the context of an object.

• yes 2

I can explain how to explicitly set the value of this in a function.

George-Hudson

**Step One**: Watch [Sorting Algorithms in JavaScript](https://www.youtube.com/watch?v=uRyqlhjXYQI)

**Step Two**: Fork this gist.

**Step Three**: Respond to this question in your fork: "What are some of the balances and trade offs between different sorting algoritms?"

* ECMA doesn't have a standart for what sorting alogorithm a browser uses
* .sort() -- 10 < 7
* .sort( function (a,b) { return a-b }); -- decending
* .sort( function (a,b) { return b-a }); -- ascending

George-Hudson

Step One: Watch Mary Rose Cook Live Codes Space Invaders from Front-Trends. (The second worst conference name ever?)

Step Two: Fork this gist.

Step Three: Respond to this question in your fork: What is one approach you can take from this Mary's code and implement in your project?

Step Four: Totally Optional: take a look at some of the other forks and comment if the spirit moves you.

George-Hudson

Step One: Watch Writing Testable JavaScript - Rebecca Murphey from Full Frontal 2012 (award for worst conference name ever?)

Step Two: Fork this gist.

Step Three: Respond to this question in your fork: Consider the four responsibilities that Rebecca lists for client side code (hint: they're color coded). Respond below with your thoughts. Did any of the responsibilities that she lists surprise you? Do you feel like you mentally split your client side code in IdeaBox and other past projects into these responsibilities?

Step Four: Totally Optional: take a look at some of the other forks and comment if the spirit moves you.

George-Hudson

- Mission

The purpose of this tutorial is to mimic setting up a DigitalOcean/AWS EC2/Linode server. The main advantages of having a virtual machine is that you can learn without worry of breaking things.

The first lesson will be all about getting familiar with a headless machine and getting a language we all know and love (ruby). Then we can mess around and try things out purely in the terminal.

The only three good options for a text editor are: emacs, vi, and vim. We will be using vim but vi itself is great and comes by default on Ubuntu 12.04.

Now you can practice getting used to ssh'ing into headless machines, using terminal based text editors, and using a terminal based window/session manager (tmux). The reason we have to use vim and tmux is that there is no X environment in a headless machine (the GUI, graphics, pretty things, etc..). The main reason for this is to save space on precious costly SSD data.

George-Hudson

Now that we have ruby, node, and rails, it is time to get pg

    ssh root@your_ip_address_for_DO
    sudo apt-get update
    mkdir -p ~/.rbenv/plugins
    cd ~/.rbenv/plugins
    git clone https://github.com/sstephenson/rbenv-vars.git
    cd
    sudo apt-get install postgresql postgresql-contrib libpq-dev