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GroupDescriptor
The group descriptor used by the groupBy
method.
ts
const groupDescriptor: GroupDescriptor[] = [
{
field: 'UnitsInStock',
dir: 'asc',
aggregates: [
{ field: 'UnitsInStock', aggregate: 'sum' },
{ field: 'UnitPrice', aggregate: 'average' },
],
},
];
aggregates? Array<AggregateDescriptor>
The aggregates which are calculated during grouping.
compare? (a: any, b: any) => number
A custom function that defines the sort order of the group.
dir? "asc" | "desc"
The sort order of the group.
field string
The data item field by which the data will be grouped.