# list.type()

The `list.type()` or `list.nth-type()` function returns the type of all or selected [`$n`](#usdn) indexes of [`$list`](#usdlist).

{% code lineNumbers="true" %}

```scss
// Functions.
@use 'get/get.map.function';
@use 'remove/remove.map.function';

// The `list.type()` function.
@function type($list, $n...) {
  $result: if(list.length($n) > 0, $n, $list);
  @for $i from 1 through list.length($result) {
    $result: list.set-nth(
      $result,
      $i,
      meta.type-of(
        list.nth($list, if(list.length($n) > 0, list.nth($result, $i), $i))
      )
    );
  }
  @return if(list.length($result) > 0, $result, null);
}
```

{% endcode %}

{% embed url="<https://github.com/angular-package/sass/blob/main/list/_list.type.function.scss>" %}

### Parameters

#### **`$list`**

The list to check type of all or given [`$n`](#usdn).

#### `$n...`

Indexes of number type to check their types in [`$list`](#usdlist).

### Return

The list with the types of the given [`$n`](#usdn) indexes.

## Examples

### All types

```scss
// Use.
@use 'angular-package/sass/list';
$-list: ('a', 2, (a: 231), 'b', 7, null, 'c', 5, 'd', 231);

// Examples.
@debug list.type($-list); // string, number, map, bool, string, number, null, string, number, string, number

```

### Selected

```scss
// Examples.
@debug list.type($-list, 4, 1, 3, 6); // string, string, map, null
@debug list.type($-list, 4, 1, 3, 6, 9); // string, string, map, null, string

```

### Not in range

```scss
// Examples.
@debug list.type($-list, 4, 1, 3, 6, 11); // ! Error not in range

```