flutter how to use this keyword in dart file?

• In this tutorial we will be discussing about this keyword in flutter dart file
• this keyword is used to refer to current instance.
• It points to the current class object.

• Lets take an example with out using this inside a class.

  void main() {
  Student s = Student(15, 'SAM');
  s.details();
  }
  class Student {
  int age = 10;
  String name = "Zohn";
  
  Student(int age, String name) {
  age = age;
  name = name;
  }
  details() {
  print('Age is $age');
  print('Name is $name');
  }
  }

  Output:

  Age is 10
  Name is Zohn

• Here age and name of the student is not updated because they are local variables so we are updating the variables of Constructor

• To update class variables we use this keyword as below.

  void main() {
  Student s = Student(15, 'SAM');
  s.details();
  }
  class Student {
  int age = 10;
  String name = "Zohn";
  
  Student(int age, String name) {
  this.age = age;
  this.name = name;
  }
  details() {
  print('Age is $age');
  print('Name is $name');
  }
  }

  Output:

  Age is 15
  Name is SAM

• Here by using this keyword we updated the variables of class
• Hence the details are modified.

-UNDER MAINTAINANCE.