numberDisplay group/groupAll

[gordonwoodhull]

By far the most popular and useful way to use a numberDisplay is with a groupAll object. The usage is

numberDisplay
  .group(cf.groupAll()) // just count all records (for example
  .valueAccessor(x => x) // do not try to fetch .value since groupAll.value() returns a value

But apparently it was originally designed to work with ordinary groups, so it also looks for group.all(), sorts that, takes the first one, and extracts its .value.

It's not as simple and straighforward as the renames in the dataTable, dataGrid #855, and dataCount #1499, but we could split this method into .group() and .groupAll(), warn if you use one when you meant the other, or even err out if you give a group to groupAll, and default the valueAccessor to identity (as shown above) if groupAll is used.