prefer_single_quotes
Unnecessary use of double quotes.
Description
#The analyzer produces this diagnostic when a string literal uses double quotes ("
) when it could use single quotes ('
) without needing extra escapes and without hurting readability.
Example
#The following code produces this diagnostic because the string literal uses double quotes but doesn't need to:
dart
void f(String name) {
print("Hello $name");
}
Common fixes
#Use single quotes in place of double quotes:
dart
void f(String name) {
print('Hello $name');
}
Unless stated otherwise, the documentation on this site reflects Dart 3.7.3. Page last updated on 2025-05-08. View source or report an issue.