# Disallow nested `then()` or `catch()` statements (`promise/no-nesting`)

⚠️ This rule _warns_ in the following configs: ✅ `flat/recommended`, ✅
`recommended`.

<!-- end auto-generated rule header -->

#### Valid

```js
myPromise.then(doSomething).then(doSomethingElse).catch(errors)
```

#### Invalid

```js
myPromise.then((val) => doSomething(val).then(doSomethingElse))

myPromise.then((val) => doSomething(val).catch(errors))

myPromise.catch((err) => doSomething(err).then(doSomethingElse))

myPromise.catch((err) => doSomething(err).catch(errors))
```