Interface Deferred<T>

Type Parameters

  • T

Hierarchy

  • Promise<T>
    • Deferred

Properties

[toStringTag] reject resolve

Methods

catch finally then

Properties

Readonly [toStringTag]

[toStringTag]: string

reject

reject: ((reason?: any) => void)

Type declaration

    • (reason?: any): void

    • Rejects the Deferred

      Parameters

      • Optional reason: any

      Returns void

resolve

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

Type declaration

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

    • Resolves the Deferred to a value T

      Parameters

      • Optional value: T | PromiseLike<T>

      Returns void

Methods

catch

  • Attaches a callback for only the rejection of the Promise.

    Returns

    A Promise for the completion of the callback.

    Type Parameters

    • TResult = never

    Parameters

    • Optional onrejected: ((reason: any) => TResult | PromiseLike<TResult>)

      The callback to execute when the Promise is rejected.

        • (reason: any): TResult | PromiseLike<TResult>

        • Parameters

          • reason: any

          Returns TResult | PromiseLike<TResult>

    Returns Promise<T | TResult>

finally

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

    Returns

    A Promise for the completion of the callback.

    Parameters

    • Optional onfinally: (() => void)

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

        • (): void

        • Returns void

    Returns Promise<T>

then

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

    Returns

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

    Type Parameters

    • TResult1 = T

    • TResult2 = never

    Parameters

    • Optional onfulfilled: ((value: T) => TResult1 | PromiseLike<TResult1>)

      The callback to execute when the Promise is resolved.

        • (value: T): TResult1 | PromiseLike<TResult1>

        • Parameters

          • value: T

          Returns TResult1 | PromiseLike<TResult1>

    • Optional onrejected: ((reason: any) => TResult2 | PromiseLike<TResult2>)

      The callback to execute when the Promise is rejected.

        • (reason: any): TResult2 | PromiseLike<TResult2>

        • Parameters

          • reason: any

          Returns TResult2 | PromiseLike<TResult2>

    Returns Promise<TResult1 | TResult2>

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