# unicorn/no-lonely-if

> Disallow an `if` as the only statement in another `if` when neither has an `else`

Two nested `if` statements with nothing else between them test one combined condition. Join them with `&&` and you lose a level of indentation and get the whole condition in one place.

`no-lonely-if` without the `unicorn/` prefix is a different rule. It reports an `if` that's the only thing in an `else` block.

{/* Generated by src/codegen/lint-rule-docs.ts. Do not edit this section. */}

## Configure

Off by default. To turn it on:

```toml bunfig.toml
[lint.rules]
"unicorn/no-lonely-if" = "error" # or "warn"
```

{/* End of the generated section. */}

## Examples

Reported:

{/* bad */}
```js
if (user) {
  if (user.isAdmin) {
    showSettings();
  }
}
```

Not reported:

{/* good */}
```js
if (user && user.isAdmin) {
  showSettings();
}
```

You can't merge the two when either one has an `else`, or when the outer block does something else as well:

{/* good */}
```js
if (user) {
  if (user.isAdmin) {
    showSettings();
  }
} else {
  showLogin();
}

if (user) {
  greet(user);
  if (user.isAdmin) {
    showSettings();
  }
}
```