> For the complete documentation index, see [llms.txt](https://docs.angular-package.dev/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.angular-package.dev/type/are/areboolean/every.md).

# every()

## `areBoolean().every()`

Checks whether **every** of the provided [`values`](https://docs.angular-package.dev/type/are/areboolean/pages/jVLq1ylc8yYVnwV9EUVj#...values-any) of [`areBoolean()`](/type/are/areboolean.md) is a [`boolean`](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Boolean) type or an instance of [`Boolean`](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Boolean).

{% hint style="info" %}
The method uses [`every()`](/type/are/aredeterminer/every.md) method of [`areDeterminer()`](/type/are/aredeterminer.md).
{% endhint %}

### Returns

The **return value** is a [`boolean`](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Boolean) indicating whether the provided [`values`](https://docs.angular-package.dev/type/are/areboolean/pages/jVLq1ylc8yYVnwV9EUVj#...values-any) of [`areBoolean()`](/type/are/areboolean.md) are a [`boolean`](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Boolean) type or an instance of [`Boolean`](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Boolean).

## Example usage

```typescript
// Example usage.
import { areBoolean } from '@angular-package/type';

areBoolean(1, true, null, new Boolean(3)).every((result, value, payload) => {
  result // false
  value // [1, true, null, Boolean]
  payload // undefined
  return result;
}); // false, boolean
```