Introduction :
Keywords are treated differently. Like other programming languages, keywords are words you can’t use as identifiers. Actually, you can use a few keywords as identifiers but you shouldn’t if you want to follow the best practices.
Built-in identifiers :
These identifiers are valid identifiers. But you can’t use them as the prefix for imports, class name or type names. Following are these identifiers :
[table]
-,-,-,-,- abstract, dynamic, implements, as, import static, interface, export, library, external mixin, factory, Function, operator, typedef covariant, get, part, set, deferred [/table]
contextual keywords :
These are valid identifiers but have meaning only in specific places.
[table]
-,-,- async, show, on hide, sync [/table]
Reserved words :
You can’t use any reserved words as identifier. These are espicifically designed for the dart language.
[table]
-,-,-,-,- assert, enum, else, extends, in super, is, switch, this, case break, true, false, throw, new final, class, null, try, const finally, var, continue, for, default rethrow, while, do, if, return with, catch, [/table]
Other than these keywords, two more keywords were introduced in Dart 1.0 :
[table]
-,- await, yield [/table]
You can’t use these keywords as an identifier in any async, async* or sync* function.
