prefer_function_declarations_over_variables
Use a function declaration to bind a function to a name.
Details
#From Effective Dart:
DO use a function declaration to bind a function to a name.
As Dart allows local function declarations, it is a good practice to use them in the place of function literals.
BAD:
void main() {
var localFunction = () {
...
};
}
GOOD:
void main() {
localFunction() {
...
}
}
Enable
#To enable the prefer_function_declarations_over_variables
rule, add prefer_function_declarations_over_variables
under linter > rules in your analysis_options.yaml
file:
linter:
rules:
- prefer_function_declarations_over_variables
If you're instead using the YAML map syntax to configure linter rules, add prefer_function_declarations_over_variables: true
under linter > rules:
linter:
rules:
prefer_function_declarations_over_variables: true
Unless stated otherwise, the documentation on this site reflects Dart 3.6.0. Page last updated on 2025-01-27. View source or report an issue.