// basic things about dart
- Helllo World
- Variable without type sefty
- Variable with type sefty
- Contacting two string
- Simple calculation
- 'var' vs 'const'
- Oparetor
- Loop
- 'break' and 'continue'
- List
- Deleting an index
- Updaet an index
- Map: Write and Read an data
- Map: Add new data
- Creating an map with constructor