storybook/docs/snippets/common/before-each-in-meta-mock-date.ts-4-9.mdx

```ts
// Page.stories.ts
// Replace your-renderer with the name of your renderer (e.g. react, vue3)
import type { Meta, StoryObj } from '@storybook/your-renderer';
import MockDate from 'mockdate';

// 👇 Must use this import path to have mocks typed correctly
import { getUserFromSession } from '#api/session.mock';
import { Page } from './Page';

const meta = {
  component: Page,
  // 👇 Set the value of Date for every story in the file
  async beforeEach() {
    MockDate.set('2024-02-14');

    // 👇 Reset the Date after each story
    return () => {
      MockDate.reset();
    };
  },
} satisfies Meta<typeof Page>;
export default meta;

type Story = StoryObj<typeof meta>;

export const Default: Story = {
  async play({ canvasElement }) {
    // ... This will run with the mocked Date
  },
};
```