groupByMap<T, TKey>( input: Iterable<T>, keySelector: (arg: T) => TKey,): Map<TKey, T[]> Parameters
- input: Iterable<T>
- keySelector: (arg: T) => TKey
Returns Map<TKey, T[]>
Parameters
- input: Iterable<T>
- keySelector: (arg: T) => TKey
- elementSelector: (arg: T) => TValue
Groups the input and returns a map.
See from(sequence).groupBy for examples.