“final” means single-assignment : a final variable or field must have an initializer. Once assigned a value, a final variable’s value cannot be changed. final modifies variables. “const” has a meaning that’s a bit more complex and subtle in Dart.
Read moreWhat is constructor in flutter?
Constructor is a special method of Dart class which is automatically called when the object is created . The constructor is like a function with/without parameter but it doesn’t have a return type.
Read moreWhat is _internal in Dart?
The _internal construction is just a name often given to constructors that are private to the class (the name is not required to be . _internal you can create a private constructor using any Class.
Read moreHow many types of functions are there in Flutter?
Basically, there are four types of functions in Dart.
Read moreWhat is Flutter function?
A function (also might be referenced to as method in the context of an object) is a subset of an algorithm that is logically separated and reusable . It can return nothing (void) or return either a built-in data type or a custom data type. It can also have no parameters or any number of parameters.
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