positioned-comparative-selection

Uses an existing ranking of items to try and position new ("to rank") items as fast as possible.

API

Item

Type: object

Properties

• id string ID of the item
• ranked boolean whether the item needs ranking or not
• middle boolean whether the item belongs to the middle range or not
• ability number? ability (or null)
• se number? standard error (or null)

Comparison

Type: object

Properties

• a string ID of the A item
• b string ID of the B item
• selected string? The ID of the selected item (i.e. either the value of a or b, Or null)

Options

Type: object

Properties

• maxComparisonsPerItem number maximum number of comparisons per item
• minReliability number minimum reliability necessary for ranked:false items

Notification

Type: object

Properties

• messages Array<string> the messages returned

select

Parameters

• payload object full payload object
  • payload.items Array<Item> list of items
  • payload.options Options options
  • payload.comparisons Array<Comparison>? list of comparisons

Returns (Comparison | Notification) The result of the selection

Development

• Testing framework: https://mochajs.org/
• Assertion library: https://github.com/moll/js-must
• Test spies and stubs: http://sinonjs.org/
• Override dependencies: https://github.com/thlorenz/proxyquire

Testing

$ npm test

Linting

$ npm lint

License

Proprietary License © 2016, d-pac