Dart Control Flow Statements

main.dart

// Chapter 5: Control Flow Statements
void main() {
//if statment
  var testList = [2, 4, 8, 16, 32];
  print(testList);
  if (testList.isNotEmpty) {
    print("Emptying List");
    testList.clear();
  }
  print(testList);
//if-else statments
  var pointsA = 50;
  var pointsB = 64;
  if (pointsA > pointsB) {
    print("Team A Wins!");
  } else {
    print("Team B Wins!");
  }

 // if-else if statment
  if (pointsA > pointsB) {
    print("Team A Wins!");
  } else if (pointsB > pointsA) {
    print("Team B Wins!");
  } else {
    print("It's a Tie!");
  }

 //Ternary operatror ? :
  var a = 5;
  var b = 2;
  var result = a > b ? a - b : b - a;
  print(result);

 // Basic for loop
  for (var i = 0; i < 5; i++) {
    print(i);
  }

 // Iterating Through a Collection
  var colorList = ['blue', 'yellow', 'green', 'red'];
  for (var i = 0; i < colorList.length; i++) {
    print(colorList[i]);
  }
 // Conditions with Loops
  var intList = [6, 7, 3, 9, 2, 5, 4];
  for (var i in intList) {
    if (i % 2 == 0) {
      print(i);
    }
  }

 //while in Action
  var count = 1;
  while (count <= 10) {
    print(count);
    count += 1;
  }

 //do-while
  var alwaysOne = 1;
  do {
    print("Using do-while: $alwaysOne");
  } while (alwaysOne != 1);

 //The break Statement
  var intList1 = [7, 3, 9, 6, 2, 5, 4];
  for (var i in intList1) {
    if (i % 2 == 0) {
      print(i);
      break;
    }
  }
 //The continue Statement
  var experience = [5, 1, 9, 7, 2, 4];
  for (var i = 0; i < experience.length; i++) {
    var candidateExperience = experience[i];
    if (candidateExperience < 5) {
      continue;
    }
    print("Call candidate $i for an interiew.");
  }

 //switch and case
  var command = 'OPEN';
  switch (command) {
    case 'CLOSED':
      print('closed');
      break;
    case 'PENDING':
      print('pending');
      break;
    case 'APPROVED':
      print('approved');
      break;
    case 'DENIED':
      print('denied');
      break;
    case 'OPEN':
      print('open');
      break;
    default:
      print('command unknown');
  }
 //Assertion with assert
  var variable;
  print(variable);
  assert(variable != null);
  variable = 5;
  print(variable);
}