(2) Map Loop

Map<String, int> ages = {
  'Ali': 20,
  'Sara': 22,
  'Omar': 19,
};

map.forEach((key, value) {
  // code
});

Map<String, int> ages = {'Ali': 20, 'Sara': 22, 'Omar': 19};

ages.forEach((name, age) {
  print('$name is $age years old');
});

Map<String, int> scores = {'Math': 90, 'Science': 85};

scores.forEach((subject, score) {
  print('Updated $subject: ${score + 1}');
});

Map<String, int> ages = {'Ali': 18, 'Lina': 21};

ages.forEach((name, age) {
  if (age >= 20) {
    print('$name is adult');
  }
});

for (var entry in map.entries) {
  print(entry.key);
  print(entry.value);
}

Map<String, String> countries = {'EG': 'Egypt', 'SA': 'Saudi Arabia'};

for (var entry in countries.entries) {
  print('Code: ${entry.key}, Country: ${entry.value}');
}

Map<String, int> points = {'A': 10, 'B': 20};

for (var entry in points.entries) {
  print('${entry.key}: ${entry.value * 2}');
}

Map<String, String> users = {
  'u1': 'Mohamed',
  'u2': 'Ali',
  'u3': 'Abdelrahman'
};

for (var entry in users.entries) {
  if (entry.value.length > 5) {
    print('${entry.value} has a long name');
  }
}

Map<String, int> data = {'x': 1, 'y': 2, 'z': 3};

for (var key in data.keys) {
  print('Key: $key');
}

Map<String, double> prices = {'apple': 1.5, 'banana': 0.75};

for (var price in prices.values) {
  print('Price: $price');
}

Map<String, int> marks = {'Math': 90, 'Physics': 80};

for (var key in marks.keys) {
  print('$key => ${marks[key]}');
}