Lists (General) overview v. 0.1

Component type	List
Document status	DRAFT
Design source (in Figma)
Author	nathan.mckean@reckitt.com (Unlicensed)
Responsible	Julia Boyarshchikova (Deactivated)

Lists are an aggregation of many items into a logical group with a common theme.

Pagination, Load More and Carousels are “list controls” and allow for a mechanism to divide lists when space is limited. Filters and Sorting are also list controls.

*Notes

Lists in and of themselves don’t have a specific visual style. But within lists, there are common layout patterns.

Discuss grid vs flexbox and how to deliver a centred option (e.g. 3 + 2).

Lists themselves are often guided by the content that exists within them, so don’t specifically have a behaviour though there are some behavioural ‘extensions’ to be mindful of.
Lists are always structural, but can also be semantic. Semantic lists allow for ordered and unordered lists (and potentially definition lists).
Any individual list can be considered critical or optional. A critical list always displays its entire contents and is generally used with the list of the core content of the page (e.g. the main product list on a product listing page. An optional list can display a portion of the list, with the remained revealed through user interaction of list controls.
List controls include carousels, ‘batch loading' and pagination, which are defined separately within this section.
Filtering and sorting are also list controls that fall outside of the MVP.

Semantic lists, marked as <li> within an ordered list <ol> or unordered list <ul> will provide a count of the items in the list to screen-readers to aid orientation. Where optional lists hide a portion of the list from display, semantic list markup would only reveal the visible portion and deliver a list count that is misleading. For this reason, optional lists need to deliver an alternative experience.
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