isErr — @gj-kit/toss-payments
A public function from @gj-kit/toss-payments/server. The signature below is taken directly from the 0.6.1 release declaration.
Verified import example
Section titled “Verified import example”import { isErr } from '@gj-kit/toss-payments/server';Signature, parameters, and return type
Section titled “Signature, parameters, and return type”declare function isErr<T, E>(r: Result<T, E>): r is Err<E>;This declaration is the source of truth for parameters, optionality, generics, return values, and public union/type contracts. Check the package golden path and this subpath’s import conditions for required environment, permission, and error boundaries before calling it.
Release context
Section titled “Release context”- Package:
@gj-kit/toss-payments - Version:
0.6.1 - Public entry:
./server - Source: GitHub