TypeScript Version: 2.1.1
class BaseError extends Error {}
class Error1 extends BaseError {}
let error = new Error1();
console.log(error instanceof Error1);
Expected behavior:
prints true.
Actual behavior:
prints false.
Note:
This happens only when a type extends Error.
After removing extends Error from BaseError everything works as expected.
Links
Test case
zry656565, kostrse, lifenautjoe, ProofOfKeags, tahkojuusto and 15 more
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