> For the complete documentation index, see [llms.txt](https://type.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://type.angular-package.dev/type-draft/are/aredefined/every.md).

# every()

## `areDefined().every()`

Checks whether **every** of the provided [`values`](https://type.angular-package.dev/type-draft/are/aredefined/pages/VSFc2q8S8XqiAax5rOFQ#...values-any) of [`areDefined()`](/type-draft/are/aredefined.md) is **defined**.

{% hint style="info" %}
The method uses [`every()`](/type-draft/are/aredeterminer/every.md) method of [`areDeterminer()`](/type-draft/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://type.angular-package.dev/type-draft/are/aredefined/pages/VSFc2q8S8XqiAax5rOFQ#...values-any) of [`areDefined()`](/type-draft/are/aredefined.md) are **defined**.

## Example usage

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

let age;

areDefined('1', 2, null, undefined, age).every((result, value, payload) => {
  result // false
  value // [ '1', 2, null, undefined, undefined ]
  payload // undefined
  return result;
}); // false, boolean
```