Class GroupArr<K, T>

The result of Arr.groupBy: derived buckets plus a grouped move/insert whose backward pass writes the group field and reorders the base.

Type Parameters

K
T

Index

Accessors

Constructors

Methods

insert map move remove

Properties

Accessors

value

get value(): readonly Group<K, T>[]
Returns readonly Group<K, T>[]
- Defined in src/core/values/arr.ts:343

Constructors

constructor

new GroupArr<K, T>(
    parent: Arr<T>,
    field: (e: Cell<T>) => Writable<Cell<K>>,
    order: readonly K[],
): GroupArr<K, T>
Type Parameters
- K
- T
Parameters
- parent: Arr<T>
- field: (e: Cell<T>) => Writable<Cell<K>>
- order: readonly K[]
Returns GroupArr<K, T>
- Defined in src/core/values/arr.ts:309

Methods

insert

insert(e: Cell<T>, key: K, index?: number): void
Alias of move.
Parameters
- e: Cell<T>
- key: K
- Optionalindex: number
Returns void
- Defined in src/core/values/arr.ts:369

map

map<F>(f: (g: Group<K, T>) => F): Read<readonly F[]>
Type Parameters
- F
Parameters
- f: (g: Group<K, T>) => F
Returns Read<readonly F[]>
- Defined in src/core/values/arr.ts:347

move

move(e: Cell<T>, key: K, index?: number): void
Place e in group key at index (within that group's order). Asserts every upstream filter, writes the group field, and splices the base — one batch, so every view re-flows once. Omit index to keep base order.
Parameters
- e: Cell<T>
- key: K
- Optionalindex: number
Returns void
- Defined in src/core/values/arr.ts:354

remove

remove(e: Cell<T>): void
Remove e from the source through the chain.
Parameters
- e: Cell<T>
Returns void
- Defined in src/core/values/arr.ts:374

Properties

`Readonly`groups

groups: Read<readonly Group<K, T>[]>

The buckets in order; tracked when read in an effect/derive.