no-single-promise-in-promise-methods.md

Disallow passing single-element arrays to Promise methods

💼 This rule is enabled in the following configs: ✅ recommended, ☑️ unopinionated.

🔧💡 This rule is automatically fixable by the --fix CLI option and manually fixable by editor suggestions.

Passing a single-element array to Promise.all(), Promise.any(), or Promise.race() is likely a mistake.

Examples

// ❌
const foo = await Promise.all([promise]);

// ❌
const foo = await Promise.any([promise]);

// ❌
const foo = await Promise.race([promise]);

// ✅
const foo = await promise;

// ❌
const promise = Promise.all([nonPromise]);

// ✅
const promise = Promise.resolve(nonPromise);

// ✅
const foo = await Promise.all(promises);

// ✅
const foo = await Promise.any([promise, anotherPromise]);

// ✅
const [{value: foo, reason: error}] = await Promise.allSettled([promise]);