GroupBy Packages

Group values according to an indicator function and return group counts.

Split values into two groups according to a predicate function.

Split an object's own and inherited property values into two groups according to a predicate function.

Split an object's own property values into two groups according to a predicate function.

Group values as arrays associated with distinct keys.

Group values according to an indicator function.

Group an object's own and inherited property values according to an indicator function.

Group an object's own property values according to an indicator function.

Split element values into two groups according to a predicate function.

Split element entries into two groups according to a predicate function.

Split element indices into two groups according to a predicate function.

Group element entries as arrays associated with distinct keys.

Group element entries according to an indicator function.

Group element indices as arrays associated with distinct keys.

Group element indices according to an indicator function.

Group elements as arrays associated with distinct keys.

Group element values according to an indicator function.

Lightweight and non-intrusive functions for doing "group by" type transformations on collections using reducers

Functions to group data by a key or multiple keys.

A lightweight, zero-dependency JavaScript library that brings LINQ-style querying capabilities to native arrays. Designed for both clarity and performance, it offers a fluent, chainable API for filtering, projecting, grouping, ordering, and aggregating da