Function byLkp

byLkp<T extends Property<any>>(
arr: T[],
grpFn: GroupFn<T>,
): Record<PropertyKey, T>
Groups an array of objects by a callback function, retaining only the last entry per group.
Type Parameters
- T extends Property<any>
Parameters
- arr: T[]
  The array of objects to group
- grpFn: GroupFn<T>
  The callback function returning the group key
Returns Record<PropertyKey, T>
A record containing the last object from each group
Example
```
const latest = byLkp(events, ev => ev.id);
```
- Defined in packages/library/src/common/array.library.ts:163
byLkp<T extends Property<any>>(
    arr: T[],
    key1: keyof T,
    ...keys: (keyof T)[],
): Record<PropertyKey, T>
Groups an array of objects by key fields, retaining only the last entry per group.
Type Parameters
- T extends Property<any>
Parameters
- arr: T[]
  The array of objects to group
- key1: keyof T
- ...keys: (keyof T)[]
  The sequence of object keys to group by
Returns Record<PropertyKey, T>
A record containing the last object from each group
Example
```
const latest = byLkp(events, 'type');
```
- Defined in packages/library/src/common/array.library.ts:175
byLkp<T extends Property<any>>(
arr: T[],
...keys: (keyof T)[],
): Record<keyof T, T>
Groups an array of objects by a callback function, retaining only the last entry per group.
Type Parameters
- T extends Property<any>
Parameters
- arr: T[]
  The array of objects to group
- ...keys: (keyof T)[]
Returns Record<keyof T, T>
A record containing the last object from each group
Example
```
const latest = byLkp(events, ev => ev.id);
```
- Defined in packages/library/src/common/array.library.ts:176

Function byLkp

Type Parameters

Parameters

Returns Record<PropertyKey, T>

Example

Type Parameters

Parameters

Returns Record<PropertyKey, T>

Example

Type Parameters

Parameters

Returns Record<keyof T, T>

Example

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