Options
All
  • Public
  • Public/Protected
  • All
Menu

Interface Promise<T, T, T, T>

Represents the completion of an asynchronous operation Represents the completion of an asynchronous operation

Type parameters

  • T

  • T

  • T

  • T

Hierarchy

Index

Properties

Methods

Properties

[Symbol.toStringTag]

[Symbol.toStringTag]: string

Methods

catch

  • catch<TResult>(onrejected?: ((reason: any) => TResult | PromiseLike<TResult>) | undefined | null): Promise<T | TResult>

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

    Type parameters

    • TResult

    Parameters

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

      The callback to execute when the Promise is rejected.

    Returns Promise<T | TResult>

    A Promise for the completion of the callback.

finally

  • finally(onfinally?: (() => void) | undefined | null): Promise<T>

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

    Parameters

    • Optional onfinally: (() => void) | undefined | null

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

    Returns Promise<T>

    A Promise for the completion of the callback.

then

  • then<TResult1, TResult2>(onfulfilled?: ((value: T) => TResult1 | PromiseLike<TResult1>) | undefined | null, onrejected?: ((reason: any) => TResult2 | PromiseLike<TResult2>) | undefined | null): Promise<TResult1 | TResult2>

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

    Type parameters

    • TResult1

    • TResult2

    Parameters

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

      The callback to execute when the Promise is resolved.

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

      The callback to execute when the Promise is rejected.

    Returns Promise<TResult1 | TResult2>

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