VirtualArray

Defined in: data/virtual-array/index.ts

Advanced array like class that helps loading items on demand.

Extends ​

• Observable

Type Parameters ​

Constructors ​

Constructor ​

new VirtualArray<T>(length?: number): VirtualArray<T>;

Defined in: data/virtual-array/index.ts

Parameters ​

Returns ​

VirtualArray<T>

Overrides ​

Observable.constructor

Properties ​

changeEvent ​

static changeEvent: string;

Defined in: data/virtual-array/index.ts

String value used when hooking to change event.

itemsLoadingEvent ​

static itemsLoadingEvent: string;

Defined in: data/virtual-array/index.ts

String value used when hooking to itemsLoading event.

propertyChangeEvent ​

static propertyChangeEvent: string;

Defined in: data/observable/index.ts

String value used when hooking to propertyChange event.

Ns Event ​

propertyChange

Inherited from ​

Observable.propertyChangeEvent

Accessors ​

length ​

Get Signature ​

get length(): number;

Defined in: data/virtual-array/index.ts

Gets or sets length for the virtual array.

Returns ​

number

Set Signature ​

set length(value: number): void;

Defined in: data/virtual-array/index.ts

Parameters ​

Returns ​

void

loadSize ​

Get Signature ​

get loadSize(): number;

Defined in: data/virtual-array/index.ts

Returns ​

number

Set Signature ​

set loadSize(value: number): void;

Defined in: data/virtual-array/index.ts

Parameters ​

Returns ​

void

Methods ​

_createPropertyChangeData() ​

_createPropertyChangeData(
   propertyName: string, 
   value: any, 
   oldValue?: any): PropertyChangeData;

Defined in: data/observable/index.ts

This method is intended to be overriden by inheritors to provide additional implementation.

Parameters ​

Returns ​

PropertyChangeData

Inherited from ​

Observable._createPropertyChangeData

_emit() ​

_emit(eventName: string): void;

Defined in: data/observable/index.ts

Parameters ​

Returns ​

void

Inherited from ​

Observable._emit

addEventListener() ​

addEventListener(
   eventName: string, 
   callback: (data: EventData) => void, 
   thisArg?: any, 
   once?: boolean): void;

Defined in: data/observable/index.ts

Adds a listener for the specified event name.

Parameters ​

Returns ​

void

Inherited from ​

Observable.addEventListener

get() ​

get(name: string): any;

Defined in: data/observable/index.ts

Gets the value of the specified property.

Parameters ​

Returns ​

any

Inherited from ​

Observable.get

getItem() ​

getItem(index: number): T;

Defined in: data/virtual-array/index.ts

Parameters ​

Returns ​

T

hasListeners() ​

hasListeners(eventName: string): boolean;

Defined in: data/observable/index.ts

Checks whether a listener is registered for the specified event name.

Parameters ​

Returns ​

boolean

Inherited from ​

Observable.hasListeners

load() ​

load(index: number, items: T[]): void;

Defined in: data/virtual-array/index.ts

Loads items from an array starting at index.

Parameters ​

Returns ​

void

notify() ​

notify<T>(data: T): void;

Defined in: data/observable/index.ts

Notify this Observable instance with some data. This causes all event handlers on the Observable instance to be called, as well as any 'global' event handlers set on the instance's class.

Type Parameters ​

Parameters ​

Returns ​

void

Inherited from ​

Observable.notify

notifyPropertyChange() ​

notifyPropertyChange(
   name: string, 
   value: any, 
   oldValue?: any): void;

Defined in: data/observable/index.ts

Notifies all the registered listeners for the property change event.

Parameters ​

Returns ​

void

Inherited from ​

Observable.notifyPropertyChange

off() ​

off(
   eventName: string, 
   callback?: (data: EventData) => void, 
   thisArg?: any): void;

Defined in: data/observable/index.ts

Removes the listener(s) for the specified event name.

Parameters ​

Returns ​

void

Inherited from ​

Observable.off

on() ​

Call Signature ​

on(
   eventName: string, 
   callback: (data: EventData) => void, 
   thisArg?: any): void;

Defined in: data/virtual-array/index.ts

Adds a listener for the specified event name.

Parameters ​

Returns ​

void

Inherited from ​

Observable.on

Call Signature ​

on(
   event: "itemsLoading", 
   callback: (args: ItemsLoading) => void, 
   thisArg?: any): void;

Defined in: data/virtual-array/index.ts

Raised when still not loaded items are requested.

Parameters ​

Returns ​

void

Inherited from ​

Observable.on

Call Signature ​

on(
   event: "change", 
   callback: (args: ChangedData<T>) => void, 
   thisArg?: any): void;

Defined in: data/virtual-array/index.ts

Raised when a change occurs.

Parameters ​

Returns ​

void

Inherited from ​

Observable.on

once() ​

once(
   eventName: string, 
   callback: (data: EventData) => void, 
   thisArg?: any): void;

Defined in: data/observable/index.ts

Adds a listener for the specified event name, which, once fired, will remove itself.

Parameters ​

Returns ​

void

Inherited from ​

Observable.once

removeEventListener() ​

removeEventListener(
   eventName: string, 
   callback?: (data: EventData) => void, 
   thisArg?: any): void;

Defined in: data/observable/index.ts

Removes listener(s) for the specified event name.

Parameters ​

Returns ​

void

Inherited from ​

Observable.removeEventListener

set() ​

set(name: string, value: any): void;

Defined in: data/observable/index.ts

Updates the specified property with the provided value.

Parameters ​

Returns ​

void

Inherited from ​

Observable.set

setItem() ​

setItem(index: number, value: T): void;

Defined in: data/virtual-array/index.ts

Parameters ​

Returns ​

void

setProperty() ​

setProperty(name: string, value: any): void;

Defined in: data/observable/index.ts

Updates the specified property with the provided value and raises a property change event and a specific change event based on the property name.

Parameters ​

Returns ​

void

Inherited from ​

Observable.setProperty

addEventListener() ​

static addEventListener(
   eventName: string, 
   callback: (data: EventData) => void, 
   thisArg?: any, 
   once?: boolean): void;

Defined in: data/observable/index.ts

Please avoid using the static event-handling APIs as they will be removed in future.

Parameters ​

Returns ​

void

Deprecated ​

Inherited from ​

Observable.addEventListener

off() ​

static off(
   eventName: string, 
   callback?: (data: EventData) => void, 
   thisArg?: any): void;

Defined in: data/observable/index.ts

Please avoid using the static event-handling APIs as they will be removed in future.

Parameters ​

Returns ​

void

Deprecated ​

Inherited from ​

Observable.off

on() ​

static on(
   eventName: string, 
   callback: (data: EventData) => void, 
   thisArg?: any, 
   once?: boolean): void;

Defined in: data/observable/index.ts

Please avoid using the static event-handling APIs as they will be removed in future.

Parameters ​

Returns ​

void

Deprecated ​

Inherited from ​

Observable.on

once() ​

static once(
   eventName: string, 
   callback: (data: EventData) => void, 
   thisArg?: any): void;

Defined in: data/observable/index.ts

Please avoid using the static event-handling APIs as they will be removed in future.

Parameters ​

Returns ​

void

Deprecated ​

Inherited from ​

Observable.once

removeEventListener() ​

static removeEventListener(
   eventName: string, 
   callback?: (data: EventData) => void, 
   thisArg?: any): void;

Defined in: data/observable/index.ts

Please avoid using the static event-handling APIs as they will be removed in future.

Parameters ​

Returns ​

void

Deprecated ​

Inherited from ​

Observable.removeEventListener