---
description: 'Require `return` statements to either always or never specify values.'
---

import Tabs from '@theme/Tabs';
import TabItem from '@theme/TabItem';

> 🛑 This file is source code, not the primary documentation location! 🛑
>
> See **https://typescript-eslint.io/rules/consistent-return** for documentation.

It adds support for functions that return `void` or `Promise<void>`.

:::danger warning
If possible, it is recommended to use tsconfig's [`noImplicitReturns`](https://www.typescriptlang.org/tsconfig/#noImplicitReturns) option rather than this rule. `noImplicitReturns` is powered by TS's type information and control-flow analysis so it has better coverage than this rule.
:::

<Tabs>
<TabItem value="❌ Incorrect">

```ts
function foo(): undefined {}
function bar(flag: boolean): undefined {
  if (flag) return foo();
  return;
}

async function baz(flag: boolean): Promise<undefined> {
  if (flag) return;
  return foo();
}
```

</TabItem>
<TabItem value="✅ Correct">

```ts
function foo(): void {}
function bar(flag: boolean): void {
  if (flag) return foo();
  return;
}

async function baz(flag: boolean): Promise<void | number> {
  if (flag) return 42;
  return;
}
```

</TabItem>
</Tabs>
