eslint/rules/async

Async code: Promises, async / await, timers and generators: nothing floating, nothing forgotten. Rules of ESLint, typescript-eslint and SonarJS (the Sonar way profile of SonarQube) on this subject, every rule listed; the TypeScript rules apply to TypeScript files only.

22 rules, 18 on. Source: lint/eslint/rules/async.mjs.

Rule	Setting	Files	What it checks	Why
no-async-promise-executor	error	JS + TS	Disallow using an async function as a Promise executor	—
no-await-in-loop	warn	JS + TS	Disallow await inside of loops	Warn: some awaits must run one after the other (ordered writes, rate limits).
no-promise-executor-return	error	JS + TS	Disallow returning values from Promise executor functions	—
require-atomic-updates	off	JS + TS	Disallow assignments that can lead to race conditions due to usage of await or yield	Off: false positives with async/await (removed from eslint:recommended).
prefer-promise-reject-errors	error	JS + TS	Require using Error objects as Promise rejection reasons	Replaced by the TS version.
require-await	warn	JS + TS	Disallow async functions which have no await expression	Replaced by the TS version.
require-yield	warn	JS + TS	Require generator functions to contain yield	—
sonarjs/generator-without-yield	off	JS + TS	Generators should explicitly "yield" a value	Off: duplicate of require-yield.
sonarjs/disabled-timeout	error	JS + TS	Disabling Mocha timeouts should be explicit	—
sonarjs/no-async-constructor	error	JS + TS	Constructors should not contain asynchronous operations	—
sonarjs/no-floating-point-equality	error	JS + TS	Floating point numbers should not be tested for equality	—
sonarjs/no-try-promise	error	JS + TS	Promise rejections should not be caught by "try" blocks	—
sonarjs/prefer-promise-shorthand	warn	JS + TS	Shorthand promises should be used	—
@typescript-eslint/await-thenable	error	TS	Disallow awaiting a value that is not a Thenable	—
@typescript-eslint/no-floating-promises	error	TS	Require Promise-like statements to be handled appropriately	—
@typescript-eslint/no-misused-promises	error	TS	Disallow Promises in places not designed to handle them	—
prefer-promise-reject-errors	off	TS	Require using Error objects as Promise rejection reasons	Replaced by the TS version.
@typescript-eslint/prefer-promise-reject-errors	error	TS	Require using Error objects as Promise rejection reasons	—
@typescript-eslint/promise-function-async	error	TS	Require any function or method that returns a Promise to be marked async	—
require-await	off	TS	Disallow async functions which have no await expression	Replaced by the TS version.
@typescript-eslint/require-await	warn	TS	Disallow async functions which do not return promises and have no await expression	—
@typescript-eslint/return-await	error	TS	Enforce consistent awaiting of returned promises	—