Collection

[dwhieb]

Related Issue

closes#142

Description

Adds a Collection class to /core, which is a subclass of the native Array object. The Collection ensures that its items are always an instance of the class/model provided to it on instantiation.

Checklist

• Check out the Contributing Guidelines if you need help getting started with your pull request.

• Open an issue for the change (if one doesn't already exist).

• Update tests for planned changes. Check that they are failing. (npm test)

• Write code to pass the tests. (npm test)

• Add inline code commenting (using JSDoc style). Add links to cross-referenced modules, and the DLx data format.

• Generate the developer documentation (npm run docs) and check your changes by opening docs/index.html in a browser.

[dwhieb]

[javascript] Collection