filter-groups

grouping →
filter-groups(
    predicate: predicate
) → grouping

Keeps whole groups whose group-level predicate evaluates to true.

Parameters

Name	Type	Required	Description
predicate	predicate	Yes	The predicate evaluated once against each group, with its key and value collection available.

Argument evaluation

Visits each group, including its key and values, in the grouping entering this call.

• predicate: Evaluated once per visited group, with its key and values available in the context.

Examples

#{("BE" => {1, 2}), ("FR" => {3})} | filter-groups($value | cardinality | greater-than(1)) → #{("BE" => {1, 2})}
#{("BE" => {1}), ("FR" => {2})} | having($key | is-equivalent-to("FR")) → #{("FR" => {2})}

Kind: Function
Scope: grouping
Aliases: having