amcrawford

• React Tutorial
• My Repo

amcrawford

Recursion Discussion

• Do you pronounce 'babel' in the same way? No

  • Follow Up Question: Will you now? Yaaas!

• What is an example of why/where you might use recursion? You can use it in most cases where you would otherwise nest for/ while loops. In this video, the author uses it to create a search tree from an array of objects with like attributes.

amcrawford

Mary Rose Cook Live Codes Space Invaders from Front-Trends.

What is one approach you can take from this Mary's code and implement in your project?

• I really like Mary's use of filter to check for the presence of fellow invaders within a firing path and block the action if the result was greater than 0. I think that we could use a similar approach to track our snake's body and prevent backward movement over itself.
• I also like how object oriented everything was; right now our game is a long method that is called at page-load but, we should abstract it out into instances of a "Game" module which might also help with some reset issues we are hitting now.

amcrawford

Writing Testable JavaScript

Consider the four responsibilities that Rebecca lists for client side code (hint: they're color coded).

According to this talk, client side code is responsible for: Presentation & Interaction; Data/ Server Communication; Application State and Setup

• Did any of the responsibilities that she lists surprise you?

  Not necessarily; coming out of Rails, getting used to putting all of those responsibilities like setup, in particular, feels a bit strange but, working with and having seen some of the projects that we will do and that will force us to manage all of these things in our client-side code it makes sense.

amcrawford

Read Node.js, Require and Exports and Organize Your Code with RequireJS

Fork this gist and answer the following questions:

• In the context of Node, what is a module?

"Modules are small chunks of your application that serve a specific purpose"... In the context of Node, a module is a set of objects with a given purpose in the program that are stored together and accessible within a one file. These act similarly to a module or class in Ruby in that they serve to group data and functions which are callable from other files through importing and exporting.

amcrawford

**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?"

**Step Four**: _Totally Optional_: take a look at some of the other forks and comment if the spirit moves you. 

amcrawford

What is ES6?

• ES6 is the newest update to the Javascript and is currently being incorporated into most major JavaScript engines.

What is Transpilation and how does it relate to ES6?

• Transpilation is the process of converting code to an updated/ similar language. Because ES6 is not fully supported yet, it must be converted on the client-side.

Looking at the ES6 Features link below, discuss one update from ES5 and if it seems useful/superfluous.

• String interpolation seems pretty exciting! While not necessarily a needed feature, coming form Ruby, it would be really great to have.

amcrawford

JavaScript Functions

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

8/10

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

7/10

amcrawford

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