Function then

then<TResult1 = T, TResult2 = never>(
onfulfilled?: ((value: T) => TResult1 | PromiseLike<TResult1>) | null,
onrejected?: ((reason: any) => TResult2 | PromiseLike<TResult2>) | null,
): Promise<TResult1 | TResult2>
Attaches callbacks for the resolution and/or rejection of the Promise.
Type Parameters
- TResult1 = T
- TResult2 = never
Parameters
- Optionalonfulfilled: ((value: T) => TResult1 | PromiseLike<TResult1>) | null
  The callback to execute when the Promise is resolved.
- Optionalonrejected: ((reason: any) => TResult2 | PromiseLike<TResult2>) | 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.
- Defined in node_modules/.pnpm/[email protected]/node_modules/typescript/lib/lib.es5.d.ts:1557