The named parameters are optional parameters referenced by name and declared within curly braces{}.
The named parameters can be utilised in a different order from their declaration.It means when you call a function, you attach the argument to the label.
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parameterName: value. |
These are parameters that can be passed in any order by passing the name of the parameter followed by the passed value. For example:
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void sum({int num1, int num2}); |
This function is called like this:
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sum(num1: 12, num2: 24); |
Also named parameters can also have default values.
Example:
Let’s take an example:
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void main() { student ('Vivek',roll:15,age:50); } void student(var name,{var roll, var age}){ print('Name=$name'); print('Roll=$roll'); print('Age=$age');
} |
Output:
Name=Vivek
Roll=15
Age=50.