Function groupBy

groupBy<T>(
array: T[],
getGroupKey: string | ((o: object) => string),
): Record<string, T[]>
groupBy - Creates an object composed of keys generated from the results of running each element of array thru getKey
Type Parameters
- T
Parameters
- array: T[]
- getGroupKey: string | ((o: object) => string)
Returns Record<string, T[]>
Example
```
groupBy(['one', 'two', 'three'], 'length');
// return { '3': ['one', 'two'], '5': ['three'] }
```
- Defined in arrays/groupBy/groupBy.ts:13