Function countBy

countBy<T extends Record<IndexKey, any>>(
list: T[],
iteratee: Iteratee<T>,
): { [k: string]: number }
Type Parameters
- T extends Record<IndexKey, any>
Parameters
- list: T[]
- iteratee: Iteratee<T>
Returns { [k: string]: number }
- Defined in source/data.ts:233