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Sarj Standards

TypeScript · correctness

no-json-stringify-error

eslint:no-json-stringify-error

Disallow `JSON.stringify` on an Error value; it yields `{}` because `message`/`stack` are non-enumerable.

Default
error
Fix
none
Languages
typescript

Why

Native Error details are non-enumerable, so generic JSON serialization discards diagnostic information.

Fix

Serialize explicit error fields or use an error-aware serializer.

Before / after

Executed by this rule’s unit tests.

Before

Do not stringify an Error object

src/report.ts · focus
try { f(); } catch (err) { JSON.stringify({ error: err }); }

After

Serialize an enumerable error field

src/report.ts · focus
try { f(); } catch (err) { JSON.stringify({ error: err.message }); }

Limits

  • The rule uses local syntax and naming evidence rather than type information.

Message IDs

noJsonStringifyError