TS · correctness

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no-silent-promise-catch

Disallow .catch() and second-argument .then() handlers that silently swallow a rejection; log, rethrow, or handle the error.

silentCatch Rule source Tests Catalog JSON

Why

A swallowed rejection hides failures and gives callers an indistinguishable fallback value.

Fix

Log, rethrow, or explicitly recover from the rejection; explain intentional teardown suppression.

Examples

Before — flagged Do not swallow the rejection

src/load.ts

load().catch(() => null);

After — preferred Report the rejection

src/load.ts

load().catch((error) => logger.error({ error }, "load failed"));

Before — flagged Report a rejection through a stable computed method

src/load.ts

const method = "catch";
Promise.reject(new Error("lost"))[method](() => null);

After — preferred Preserve a recognized optional body parse fallback

src/load.ts

const method = "json";
new Response("")[method]().catch(() => null);