Attaches a callback that is invoked when the Promise is settled (fulfilled or rejected). The resolved value cannot be modified from the callback.
Optionalonfinally: (() => void) | nullThe callback to execute when the Promise is settled (fulfilled or rejected).
A Promise for the completion of the callback.
Attaches callbacks for the resolution and/or rejection of the Promise.
A Promise for the completion of which ever callback is executed.
Optionalcallback: (err: any, value: T | undefined) => any
A promise wrapper that supports the old NodeJS callback style with
thenCallmethod. Used bythenablePromisedecorator to make any Async function that returns a promise support the old NodeJS callback style and return the promise that supportsthenCallmethod.