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Interface Promise<T>

Represents the completion of an asynchronous operation

Type parameters

  • T

Hierarchy

  • Promise

Index

Methods

Methods

catch

  • catch<TResult>(onrejected?: function | undefined | null): Promise<T | TResult>

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

    Type parameters

    • TResult

    Parameters

    • Optional onrejected: function | undefined | null

      The callback to execute when the Promise is rejected.

    Returns Promise<T | TResult>

    A Promise for the completion of the callback.

then

  • then<TResult1, TResult2>(onfulfilled?: function | undefined | null, onrejected?: function | undefined | null): Promise<TResult1 | TResult2>

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

    Type parameters

    • TResult1

    • TResult2

    Parameters

    • Optional onfulfilled: function | undefined | null

      The callback to execute when the Promise is resolved.

    • Optional onrejected: function | 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.