The answer
Use a to(promise) helper that returns [data, null] or [null, err]. Then: const [data, err] = await to(fetch()); if (err) handleError(err); else render(data);. This is Go-style error handling.
async/await Error Handling Best Practices in JavaScript
How do you avoid nested try/catch in async/await in JavaScript?
More FAQs in async/await Error Handling Best Practices in JavaScript
Use try/catch around the await calls. If any await rejects, the catch block runs with the rejection reason. try/catch also catches thrown errors inside the try block.
Assign a fallback value in the catch block, then continue: try { data = await fetch(); } catch { data = fallback; } render(data);. The function continues with the fallback.
Re-throw the error in the catch block: catch (err) { console.error(err); throw err; }. The caller can catch it with their own try/catch.
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