This are generic type parameters . It allows specializations of classes. List is a list that can contain any value (if no type parameter is passed dynamic is used by default). List<int> is a list that only allows integer values and null`.
Read moreHow do you use operators in Dart?
Dart supports the following types of operators.
Read moreHow do I know if optional parameter exists in darts?
It turns out that Dart does indeed have a way to ask if an optional parameter was provided when the method was called. Just use the question mark parameter syntax .
Read moreHow do I know if optional parameter exists in darts?
It turns out that Dart does indeed have a way to ask if an optional parameter was provided when the method was called. Just use the question mark parameter syntax .
Read moreCan parameters be optional?
By definition, an Optional Parameter is a handy feature that enables programmers to pass less number of parameters to a function and assign a default value .
Read moreHow do you pass optional parameters in flutter?
To specify the optional argument with default values, we use {} curly braces . In optional positional argument and optional named argument, if we don’t specify the value in an argument then it is set to NULL.
Read moreHow do you pass optional parameters in flutter?
To specify the optional argument with default values, we use {} curly braces . In optional positional argument and optional named argument, if we don’t specify the value in an argument then it is set to NULL.
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