Locale constructor Null safety

1. Flutter
2. locale
3. Locale
4. Locale constructor

Locale class

1. Constructors
2. Locale
3. Properties
4. countryCode
5. hashCode
6. languageCode
7. runtimeType
8. scriptCode
9. variants
10. Methods
11. noSuchMethod
12. toLanguageTag
13. toString
14. Operators
15. operator ==
16. Static methods
17. fromSubtags
18. parse
19. tryParse