nfsCalendarUnderWater: Complete Guide to Using the Component

How to Implement nfsCalendarUnderWater in Your Project

1. Install and import

• Install: Add the package that provides nfsCalendarUnderWater (assume npm):

  bash
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  npm install nfs-calendar-underwater 

• Import:

  javascript
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  import { nfsCalendarUnderWater } from ‘nfs-calendar-underwater’;
  

2. Basic initialization

• Create a container element in your HTML:

  html
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  <div id=“calendar-root”></div>
  

• Initialize in JavaScript:

  javascript
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  const root = document.getElementById(‘calendar-root’);
  const calendar = nfsCalendarUnderWater(root, {
  startDate: new Date(),
    locale: ‘en-US’
  });
  

3. Common configuration options (presumed)

• startDate: initial visible month/day.
• locale: language/formatting.
• theme: ‘light’ | ‘dark’ or custom object for colors.
• selectionMode: ‘single’ | ‘range’ | ‘multiple’.
• minDate / maxDate: limit selectable range.
• events: array of event objects { id, date, title, color }.

4. Event handling and callbacks

• Example callbacks:

  javascript
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  calendar.on(‘select’, (selection) => { /* handle date selection / });
  calendar.on(‘dayClick’, (day) => { / open detail modal / });
  calendar.on(‘navigate’, (visibleRange) => { / lazy-load events */ });
  

• Programmatic methods:

  javascript
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  calendar.gotoDate(new Date(2026, 0, 1));
  calendar.addEvent({ id: ‘1’, date: ‘2026-02-14’, title: ‘Valentine’ });
  calendar.clear();
  

5. Styling and theming

• If the component exposes CSS variables, override in your stylesheet:

  css
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  :root {
    –nfs-bg: #001f3f;
    –nfs-accent: #00bcd4;
  }
  

• Or pass a theme object during init:

  javascript
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  nfsCalendarUnderWater(root, { theme: { background: ’#001f3f’, accent: ’#00bcd4’ } });
  

6. Performance tips

• Lazy-load events for visible months only.
• Debounce navigation handlers.
• Virtualize day cells if rendering large ranges.

7. Accessibility

• Ensure keyboard navigation works (arrow keys, enter).
• Provide aria-labels for days and interactive controls.
• Ensure color contrast for event indicators.

8. Testing and troubleshooting

• Test date edge cases (leap years, time zones).
• Verify locale formatting.
• Use developer tools to inspect emitted events and methods.

9. Example complete snippet

html
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<div id=“calendar-root”></div>
<script type=“module”>
import { nfsCalendarUnderWater } from ‘nfs-calendar-underwater’;

const calendar = nfsCalendarUnderWater(document.getElementById(‘calendar-root’), {
  startDate: new Date(),
  locale: ‘en-US’,
  selectionMode: ‘range’,
  events: [{ id: ‘e1’, date: ‘2026-02-14’, title: ‘Event’ }]
});

calendar.on(‘select’, (sel) => console.log(‘Selected:’, sel));
</script>

10. Next steps

• Consult the component’s official docs for exact API names.
• Add tests and integrate with your app’s state management (Redux, Vuex, etc.).