# Modern Spreadsheet
- High performance spreadsheet based on CanvasAPI.
- TypeScript supported

## Basic usage
```ts
import Spreadsheet from  'modern_spreadsheet'
import 'modern_spreadsheet/style.css'  // <= this is required

const  target = document.getElementById('spreadsheet')
const  sheet = new  Spreadsheet(target)
//...
```

## Save and load data
```ts
function  saveData() {
	const  serialized = sheet.serializeData()
	localStorage.setItem('sheet_data', JSON.stringify(serialized))
}

function  loadData() {
	const  data = localStorage.getItem('sheet_data')
	const  json = JSON.parse(data)
	if(!json) return;
	sheet.loadData(json)
}
```

## Roadmap
- Custom event functions (ex.: onSelectionChange, onCellEdit...). Full list of supported events will available on this page
- Rows number and columns heading render
- Rows and columns resizing
- Toolbar
- Context menu
- Formulas support
- Selected cell depends cells highlight
- Async formulas support
- Mutlisheets (?)
-