Deferred Class

Package: @esfx/async-deferred

Encapsulates a Promise and exposes its resolve and reject callbacks.

Declaration

export declare class Deferred<T> 

Constructors

constructor()

Initializes a new instance of the Deferred class.

Declaration

constructor();

Properties

callback

Gets a NodeJS-style callback that can be used to resolve or reject the promise.

Declaration

get callback(): T extends void ? (err: Error | null | undefined) => void : (err: Error | null | undefined, value: T) => void;

Property Value

T extends void ? (err: Error | null | undefined) => void : (err: Error | null | undefined, value: T) => void

promise

Gets the promise.

Declaration

get promise(): Promise<T>;

Property Value

Promise<T>

reject

Gets the callback used to reject the promise.

Declaration

get reject(): (reason: any) => void;

Property Value

(reason: any) => void

resolve

Gets the callback used to resolve the promise.

Declaration

get resolve(): (value: T | PromiseLike<T>) => void;

Property Value

(value: T | PromiseLike<T>) => void

Methods

createCallback(selector)

Creates a NodeJS-style callback that can be used to resolve or reject the promise with multiple values.

Declaration

createCallback<A extends any[]>(selector: (...args: A) => T): (err: Error | null | undefined, ...args: A) => void;

Type Parameters

A

Parameters

selector

(...args: A) => T

Returns

(err: Error | null | undefined, ...args: A) => void