> For the complete documentation index, see [llms.txt](https://ddzy.gitbook.io/ts-utility-plugins-docs/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://ddzy.gitbook.io/ts-utility-plugins-docs/utility/utility-array/isstrictarray.md).

# isStrictArray

### 说明

判断是否严格的数组

### 源码

<https://github.com/ddzy/ts-utility-plugins/tree/master/src/ddzy/utility/array/isStrictArray>

### 用法

{% code title="isStrictArray.test.ts" %}

```typescript
import { isStrictArray } from "../../utility/array/isStrictArray";

describe('isStrictArray', () => {
  test('isStrictArray should return `true` if received a strict array', () => {
    const received = [
      [],
      [1, 2, 4],
      [{}, {}],
    ];

    for (const v of received) {
      expect(isStrictArray(v)).toBeTruthy();
    }
  });

  test('isStrictArray should return `false` if received a non array', () => {
    document.body.innerHTML += `
      <p></p>
      <h3></h3>
      <p></p>
    `;

    const received = [
      { a: 1, b: 2, length: 2 },
      document.querySelectorAll('p'),
      { name: 'duan', age: 20 },
      null,
      undefined,
      0,
      '',
    ];

    for (const v of received) {
      expect(isStrictArray(v)).toBeFalsy();
    }
  });
});
```

{% endcode %}