Dart Basic: Functions

main.dart

// A function is a named block of code that performs a task.
// This function takes two numbers and returns their sum.
double addNumbers(double num1, double num2) {
  return num1 + num2;
}

// This is the main function where our program starts.
void main() {
  double result = addNumbers(10.5, 20.0);
  print("The result of the function is: $result");
  
  double zakatableAssets = 15000;
  double liabilities = 4000;
  
  // Functions make code reusable and easier to read.
  double netWealth = calculateNetWealth(zakatableAssets, liabilities);
  print("Your net zakatable wealth is: $netWealth");
}

// A function to calculate net wealth.
double calculateNetWealth(double assets, double debts) {
  // The 'return' keyword sends a value back from the function.
  return assets - debts;
}