Class Observable

Hierarchy

Observable

Index

Constructors

constructor

Properties

Methods

Constructors

constructor

new Observable(): Observable

- Defined in nativescript-core.d.ts:4422
Returns Observable

Properties

Private _isViewBase

_isViewBase: boolean

Static propertyChangeEvent

propertyChangeEvent: string

Methods

Private _createPropertyChangeData

_createPropertyChangeData(name: string, value: any, oldValue?: any): PropertyChangeData

- Defined in nativescript-core.d.ts:4514
Parameters
- name: string
- value: any
- Optional oldValue: any
Returns PropertyChangeData

Private _emit

_emit(eventNames: string): any

- Defined in nativescript-core.d.ts:4526
Parameters
- eventNames: string
Returns any

addEventListener

addEventListener(eventNames: string, callback: function, thisArg?: any): any

- Defined in nativescript-core.d.ts:4467
Parameters
- eventNames: string
- callback: function
  - - (data: EventData): void
    - Parameters
      - data: EventData
      Returns void
- Optional thisArg: any
Returns any

get

get(name: string): any

- Defined in nativescript-core.d.ts:4490
Parameters
- name: string
Returns any

hasListeners

hasListeners(eventName: string): boolean

- Defined in nativescript-core.d.ts:4507
Parameters
- eventName: string
Returns boolean

notify

notify<T>(data: T): void

- Defined in nativescript-core.d.ts:4496
Type parameters
- T: EventData
Parameters
- data: T
Returns void

notifyPropertyChange

notifyPropertyChange(propertyName: string, value: any, oldValue?: any): void

- Defined in nativescript-core.d.ts:4501
Parameters
- propertyName: string
- value: any
- Optional oldValue: any
Returns void

off

off(eventNames: string, callback?: any, thisArg?: any): any

- Defined in nativescript-core.d.ts:4459
Parameters
- eventNames: string
- Optional callback: any
- Optional thisArg: any
Returns any

on

on(eventNames: string, callback: function, thisArg?: any): any
on(event: "propertyChange", callback: function, thisArg?: any): any

- Defined in nativescript-core.d.ts:4441
Parameters
- eventNames: string
- callback: function
  - - (data: EventData): void
    - Parameters
      - data: EventData
      Returns void
- Optional thisArg: any
Returns any
- Defined in nativescript-core.d.ts:4446
Parameters
- event: "propertyChange"
- callback: function
  - - (data: EventData): void
    - Parameters
      - data: EventData
      Returns void
- Optional thisArg: any
Returns any

once

once(event: string, callback: function, thisArg?: any): any

- Defined in nativescript-core.d.ts:4454
Parameters
- event: string
- callback: function
  - - (data: EventData): void
    - Parameters
      - data: EventData
      Returns void
- Optional thisArg: any
Returns any

removeEventListener

removeEventListener(eventNames: string, callback?: any, thisArg?: any): any

- Defined in nativescript-core.d.ts:4475
Parameters
- eventNames: string
- Optional callback: any
- Optional thisArg: any
Returns any

set

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

- Defined in nativescript-core.d.ts:4480
Parameters
- name: string
- value: any
Returns void

setProperty

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

- Defined in nativescript-core.d.ts:4485
Parameters
- name: string
- value: any
Returns void

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