Composer is package management for PHP. Just like Gem or NPM. IMO such a test can be interesting to assess the ability of a developer to organize his logic and architect an application, but using it to evaluate the ability to produce "production ready" applications is my opinion missing the point as it's in the former that you can see the core ability of a developer while the later just requires time investment and tedious grunt work tasks. Witch is why I chose to concentrate on what matters.
No, just stop. Listen to what the parent says here. You made it hard for anyone to review your code because of all the framework misdirection. He/she also reports on your liberal mixing of ui and game state code in javascript which points to lack of understanding of MVC, or separation-of-concerns in general.
If you want to respond, respond to those items, not excuses <- denotes junior-level mentality.
