map-groups

grouping →
map-groups(
    expression: expression
) → grouping

Transforms each group’s value collection while preserving its key and position.

Parameters

Name	Type	Required	Description
expression	expression	Yes	The expression evaluated once against each group’s value collection.

Argument evaluation

Visits each group in the incoming grouping and supplies its entire value collection to the expression.

• expression: Evaluated once per group against that group’s entire value collection.

Examples

#{("BE" => {10, 20, 30}), ("FR" => {5, 15})} | map-groups(filter(greater-than(10))) → #{("BE" => {20, 30}), ("FR" => {15})}
#{("BE" => {10}), ("FR" => {20})} |#> filter(greater-than(15)) → #{("BE" => {}), ("FR" => {20})}

Kind: Function
Scope: grouping
Aliases: None