Class DeferredPromise<T>

constructor

• new DeferredPromise<T>(): DeferredPromise<T>

  Type Parameters

  • T

  Returns DeferredPromise<T>

Readonlyinstance

Optionalreason

state

Optionalvalue

isFulfilled

• get isFulfilled(): boolean

  Checks if the promise is fulfilled.

  Returns boolean

isPending

• get isPending(): boolean

  Checks if the promise is pending.

  Returns boolean

isRejected

• get isRejected(): boolean

  Checks if the promise is rejected.

  Returns boolean

isResolved

• get isResolved(): boolean

  Checks if the promise is resolved.

  Returns boolean

catch

• catch<TResult = never>(
      onrejected?: ((reason: any) => TResult | PromiseLike<TResult>) | null,
  ): this

  Attaches a callback for only the rejection of the Promise.

  Type Parameters

  • TResult = never

  Parameters

  • Optionalonrejected: ((reason: any) => TResult | PromiseLike<TResult>) | null

    The callback to execute when the Promise is rejected.

  Returns this

  A Promise for the completion of the callback.

finally

• finally(onfinally?: (() => void) | null): this

  Attaches a callback that is invoked when the Promise is settled (fulfilled or rejected). The resolved value cannot be modified from the callback.

  Parameters

  • Optionalonfinally: (() => void) | null

    The callback to execute when the Promise is settled (fulfilled or rejected).

  Returns this

  A Promise for the completion of the callback.

reject

• reject(reason?: any): void

  Parameters

  • Optionalreason: any

  Returns void

resolve

• resolve(value: T | PromiseLike<T>): void

  Resolves the promise with a value or the result of another promise.

  Parameters

  • value: T | PromiseLike<T>

  Returns void

then

• then<TResult1 = T, TResult2 = never>(
      onfulfilled?: ((value: T) => TResult1 | PromiseLike<TResult1>) | null,
      onrejected?: ((reason: any) => TResult2 | PromiseLike<TResult2>) | null,
  ): this

  Attaches callbacks for the resolution and/or rejection of the Promise.

  Type Parameters

  • TResult1 = T
  • TResult2 = never

  Parameters

  • Optionalonfulfilled: ((value: T) => TResult1 | PromiseLike<TResult1>) | null

    The callback to execute when the Promise is resolved.

  • Optionalonrejected: ((reason: any) => TResult2 | PromiseLike<TResult2>) | null

    The callback to execute when the Promise is rejected.

  Returns this

  A Promise for the completion of which ever callback is executed.