Dart Wildcard Pattern

var result = switch (expression) {
  1 => 'One',
  2 => 'Two',
  _ => 'Other' // Matches any value not explicitly handled above
};

switch (dynamicValue) {
  case int _:
    print('Value is an integer, but the value is not bound.');
  case String _:
    print('Value is a string, but the value is not bound.');
}

// Record destructuring: matches a 3-element record, discards the second element
var (first, _, third) = (1, 2, 3);

// List destructuring: matches a 4-element list, discards the middle two elements
var [start, _, _, end] = [10, 20, 30, 40];

// Map destructuring: matches the key 'b' but discards its value
var {'a': aVal, 'b': _} = {'a': 1, 'b': 2};

// Using multiple wildcards in a single logical-or pattern
if (shape case (int _, double _) | (double _, int _)) {
  print('Matches a mixed numeric coordinate pair');
}