Understanding Flutter: Final vs Const - Know When to Use Each!
In Flutter, both final and const are used to declare constants, but they have different meanings and use cases:
final
Declares a variable that can only be assigned once.
The value of a final variable can be determined at runtime.
It is commonly used for variables whose values are known at runtime but won't change during the execution of the program.
Example:
final String appName = 'MyApp';
const
Declares a compile-time constant.
The value of a const variable must be known at compile-time.
It is commonly used for variables whose values are known at compile-time and won't change during runtime.
Example:
const double pi = 3.14;
In summary, final is used for variables whose values are known at runtime, while const is used for variables whose values are known at compile-time. Additionally, const variables are implicitly final, meaning they cannot be reassigned after they have been initialized.
#FlutterDevelopment #FinalVsConst #FlutterConstants #DartProgramming #FlutterTips #FlutterTutorials #ProgrammingTips #ConstVariables #FinalVariables #CodingTips #FlutterLearning #FlutterCommunity
Watch video Understanding Flutter: Final vs Const - Know When to Use Each! online without registration, duration hours minute second in high quality. This video was added by user FlutterforGeeks 16 February 2024, don't forget to share it with your friends and acquaintances, it has been viewed on our site 177 once and liked it 8 people.