Readonly[toReadonlycatchOptionalonrejected: null | ((reason: any) => TResult | PromiseLike<TResult>)The callback to execute when the Promise is rejected.
A Promise for the completion of the callback.
ReadonlyfinallyAttaches a callback that is invoked when the Promise is settled (fulfilled or rejected). The resolved value cannot be modified from the callback.
ReadonlythenAttaches callbacks for the resolution and/or rejection of the Promise.
Optionalonfulfilled: null | ((value: T) => TResult1 | PromiseLike<TResult1>)The callback to execute when the Promise is resolved.
Optionalonrejected: null | ((reason: any) => TResult2 | PromiseLike<TResult2>)The callback to execute when the Promise is rejected.
A Promise for the completion of which ever callback is executed.
Attaches a callback for only the rejection of the Promise.