Function groupBy

groupBy<T, TKey>(
input: Iterable<T>,
keySelector: (arg: T) => TKey,
): Iterable<[TKey, T[]]>
Groups the input into an iterable with the key and values.

See from(sequence).groupBy for examples.
Type Parameters
- T
- TKey
Parameters
- input: Iterable<T>
- keySelector: (arg: T) => TKey
Returns Iterable<[TKey, T[]]>
- Defined in enumerable.ts:119
groupBy<T, TKey, TValue>(
    input: Iterable<T>,
    keySelector: (arg: T) => TKey,
    elementSelector: (arg: T) => TValue,
): Iterable<[TKey, TValue[]]>
Groups the input into an iterable with the key and values.

See from(sequence).groupBy for examples.
Type Parameters
- T
- TKey
- TValue
Parameters
- input: Iterable<T>
- keySelector: (arg: T) => TKey
- elementSelector: (arg: T) => TValue
Returns Iterable<[TKey, TValue[]]>
- Defined in enumerable.ts:120