prefer_ const_ declarations
Prefer const
over final
for declarations.
Details
#PREFER using const
for constant-valued declarations.
Constant declarations are more hot-reload friendly and allow values to be used in other constant expressions.
BAD:
final o = const <int>[];
class A {
static final o = const <int>[];
}
GOOD:
const o = <int>[];
class A {
static const o = <int>[];
}
Enable
#
To enable the
prefer_const_declarations
rule, add
prefer_const_declarations
under
linter > rules
in your
analysis_options.yaml
file:
linter:
rules:
- prefer_const_declarations
If you're instead using the YAML map syntax to configure linter rules,
add
prefer_const_declarations: true
under
linter > rules:
linter:
rules:
prefer_const_declarations: true
Unless stated otherwise, the documentation on this site reflects Dart 3.9.2. Report an issue.