Function groupByKey

groupByKey<T, K>(list, key): T[][]

Group array by key

Type Parameters

T
K extends string | number | symbol

Parameters

list: T[]
key: K

Returns T[][]

Example

// returns [ [ { name: 'Pedro', age: 20 }, { name: 'Maria', age: 20 } ], [ { name: 'João', age: 15 } ] ]
groupByKey([{ name: 'Pedro', age: 20 }, { name: 'João': age: 15 }, { name: 'Maria', age: 20 }], 'age');