BlockSuite API Documentation / @blocksuite/store / Y / Map

Class: Map<MapType>

Implements

Extends

• AbstractType<YMapEvent<MapType>>

Type parameters

• MapType

A shared Map implementation.

Implements

• Iterable<[string, MapType]>

Constructors

new Map(entries)

new Map<MapType>(entries?): Map<MapType>

Parameters

• entries?: Iterable<readonly [string, any]>

an optional iterable to initialize the YMap

Returns

Map<MapType>

Overrides

AbstractType.constructor

Source

node_modules/.pnpm/yjs@13.6.14/node_modules/yjs/dist/src/types/YMap.d.ts:27

Properties

_dEH

_dEH: EventHandler<YEvent<any>[], Transaction>

Deep event handlers

Inherited from

AbstractType._dEH

Source

node_modules/.pnpm/yjs@13.6.14/node_modules/yjs/dist/src/types/AbstractType.d.ts:46

---

_eH

_eH: EventHandler<YMapEvent<MapType>, Transaction>

Event handlers

Inherited from

AbstractType._eH

Source

node_modules/.pnpm/yjs@13.6.14/node_modules/yjs/dist/src/types/AbstractType.d.ts:41

---

_item

_item: null | Item

Inherited from

AbstractType._item

Source

node_modules/.pnpm/yjs@13.6.14/node_modules/yjs/dist/src/types/AbstractType.d.ts:23

---

_length

_length: number

Inherited from

AbstractType._length

Source

node_modules/.pnpm/yjs@13.6.14/node_modules/yjs/dist/src/types/AbstractType.d.ts:36

---

_map

_map: Map<string, Item>

Inherited from

AbstractType._map

Source

node_modules/.pnpm/yjs@13.6.14/node_modules/yjs/dist/src/types/AbstractType.d.ts:27

---

_prelimContent

private _prelimContent: any

Source

node_modules/.pnpm/yjs@13.6.14/node_modules/yjs/dist/src/types/YMap.d.ts:32

---

_searchMarker

_searchMarker: null | ArraySearchMarker[]

Inherited from

AbstractType._searchMarker

Source

node_modules/.pnpm/yjs@13.6.14/node_modules/yjs/dist/src/types/AbstractType.d.ts:50

---

_start

_start: null | Item

Inherited from

AbstractType._start

Source

node_modules/.pnpm/yjs@13.6.14/node_modules/yjs/dist/src/types/AbstractType.d.ts:31

---

doc

doc: null | Doc

Inherited from

AbstractType.doc

Source

node_modules/.pnpm/yjs@13.6.14/node_modules/yjs/dist/src/types/AbstractType.d.ts:35

Accessors

_first

get _first(): null | Item

The first non-deleted item

Returns

null | Item

Source

node_modules/.pnpm/yjs@13.6.14/node_modules/yjs/dist/src/types/AbstractType.d.ts:81

---

parent

get parent(): null | AbstractType<any>

Returns

null | AbstractType<any>

Source

node_modules/.pnpm/yjs@13.6.14/node_modules/yjs/dist/src/types/AbstractType.d.ts:54

---

size

get size(): number

Returns the size of the YMap (count of key/value pairs)

Returns

number

Source

node_modules/.pnpm/yjs@13.6.14/node_modules/yjs/dist/src/types/YMap.d.ts:65

Methods

[iterator]()

[iterator](): IterableIterator<[string, MapType]>

Returns an Iterator of [key, value] pairs

Returns

IterableIterator<[string, MapType]>

Implementation of

Iterable.[iterator]

Source

node_modules/.pnpm/yjs@13.6.14/node_modules/yjs/dist/src/types/YMap.d.ts:128

---

_callObserver()

_callObserver(transaction, _parentSubs): void

Creates YEvent and calls all type observers. Must be implemented by each type.

Parameters

• transaction: Transaction

• _parentSubs: Set<null | string>

Keys changed on this type. null if list was modified.

Returns

void

Inherited from

AbstractType._callObserver

Source

node_modules/.pnpm/yjs@13.6.14/node_modules/yjs/dist/src/types/AbstractType.d.ts:89

---

_copy()

_copy(): Map<MapType>

Returns

Map<MapType>

Overrides

AbstractType._copy

Source

node_modules/.pnpm/yjs@13.6.14/node_modules/yjs/dist/src/types/YMap.d.ts:47

---

_integrate()

_integrate(y, item): void

Integrate this type into the Yjs instance.

• Save this struct in the os
• This type is sent to other client
• Observer functions are fired

Parameters

• y: Doc

The Yjs instance

• item: Item

Returns

void

Overrides

AbstractType._integrate

Source

node_modules/.pnpm/yjs@13.6.14/node_modules/yjs/dist/src/types/YMap.d.ts:43

---

_write()

_write(_encoder): void

Parameters

• _encoder: UpdateEncoderV1 | UpdateEncoderV2

Returns

void

Inherited from

AbstractType._write

Source

node_modules/.pnpm/yjs@13.6.14/node_modules/yjs/dist/src/types/AbstractType.d.ts:77

---

clear()

clear(): void

Removes all elements from this YMap.

Returns

void

Source

node_modules/.pnpm/yjs@13.6.14/node_modules/yjs/dist/src/types/YMap.d.ts:122

---

clone()

clone(): Map<MapType>

Returns

Map<MapType>

Overrides

AbstractType.clone

Source

node_modules/.pnpm/yjs@13.6.14/node_modules/yjs/dist/src/types/YMap.d.ts:51

---

delete()

delete(key): void

Remove a specified element from this YMap.

Parameters

• key: string

The key of the element to remove.

Returns

void

Source

node_modules/.pnpm/yjs@13.6.14/node_modules/yjs/dist/src/types/YMap.d.ts:95

---

entries()

entries(): IterableIterator<[string, MapType]>

Returns an Iterator of [key, value] pairs

Returns

IterableIterator<[string, MapType]>

Source

node_modules/.pnpm/yjs@13.6.14/node_modules/yjs/dist/src/types/YMap.d.ts:83

---

forEach()

forEach(f): void

Executes a provided function on once on every key-value pair.

Parameters

• f

A function to execute on every element of this YArray.

Returns

void

Source

node_modules/.pnpm/yjs@13.6.14/node_modules/yjs/dist/src/types/YMap.d.ts:89

---

get()

get(key): undefined | MapType

Returns a specified element from this YMap.

Parameters

• key: string

Returns

undefined | MapType

Source

node_modules/.pnpm/yjs@13.6.14/node_modules/yjs/dist/src/types/YMap.d.ts:111

---

has()

has(key): boolean

Returns a boolean indicating whether the specified key exists or not.

Parameters

• key: string

The key to test.

Returns

boolean

Source

node_modules/.pnpm/yjs@13.6.14/node_modules/yjs/dist/src/types/YMap.d.ts:118

---

keys()

keys(): IterableIterator<string>

Returns the keys for each element in the YMap Type.

Returns

IterableIterator<string>

Source

node_modules/.pnpm/yjs@13.6.14/node_modules/yjs/dist/src/types/YMap.d.ts:71

---

observe()

observe(f): void

Observe all events that are created on this type.

Parameters

• f

Observer function

Returns

void

Inherited from

AbstractType.observe

Source

node_modules/.pnpm/yjs@13.6.14/node_modules/yjs/dist/src/types/AbstractType.d.ts:95

---

observeDeep()

observeDeep(f): void

Observe all events that are created by this type and its children.

Parameters

• f

Observer function

Returns

void

Inherited from

AbstractType.observeDeep

Source

node_modules/.pnpm/yjs@13.6.14/node_modules/yjs/dist/src/types/AbstractType.d.ts:101

---

set()

set<VAL>(key, value): VAL

Adds or updates an element with a specified key and value.

Type parameters

• VAL

Parameters

• key: string

The key of the element to add to this YMap

• value: VAL

The value of the element to add

Returns

VAL

Source

node_modules/.pnpm/yjs@13.6.14/node_modules/yjs/dist/src/types/YMap.d.ts:104

---

toJSON()

toJSON(): Object

Transforms this Shared Type to a JSON object.

Returns

Object

Overrides

AbstractType.toJSON

Source

node_modules/.pnpm/yjs@13.6.14/node_modules/yjs/dist/src/types/YMap.d.ts:57

---

unobserve()

unobserve(f): void

Unregister an observer function.

Parameters

• f

Observer function

Returns

void

Inherited from

AbstractType.unobserve

Source

node_modules/.pnpm/yjs@13.6.14/node_modules/yjs/dist/src/types/AbstractType.d.ts:107

---

unobserveDeep()

unobserveDeep(f): void

Unregister an observer function.

Parameters

• f

Observer function

Returns

void

Inherited from

AbstractType.unobserveDeep

Source

node_modules/.pnpm/yjs@13.6.14/node_modules/yjs/dist/src/types/AbstractType.d.ts:113

---

values()

values(): IterableIterator<MapType>

Returns the values for each element in the YMap Type.

Returns

IterableIterator<MapType>

Source

node_modules/.pnpm/yjs@13.6.14/node_modules/yjs/dist/src/types/YMap.d.ts:77