Readonly [toOptional onrejected: ((reason: any) => TResult | PromiseLike<TResult>)The callback to execute when the Promise is rejected.
Attaches a callback that is invoked when the Promise is settled (fulfilled or rejected). The resolved value cannot be modified from the callback.
A Promise for the completion of the callback.
Optional onfinally: (() => void)The callback to execute when the Promise is settled (fulfilled or rejected).
Attaches callbacks for the resolution and/or rejection of the Promise.
A Promise for the completion of which ever callback is executed.
Optional onfulfilled: ((value: void) => TResult1 | PromiseLike<TResult1>)The callback to execute when the Promise is resolved.
Optional onrejected: ((reason: any) => TResult2 | PromiseLike<TResult2>)The callback to execute when the Promise is rejected.
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Attaches a callback for only the rejection of the Promise.
Returns
A Promise for the completion of the callback.