whereBetween method

List<T> whereBetween(String key, num start, num end)

Filters the list to include only elements where the specified key's value is within the given range.

key is the key to check. start is the lower bound of the range (inclusive). end is the upper bound of the range (inclusive).

Example:

final filteredList = list.whereBetween("age", 18, 30);

Implementation

List<T> whereBetween(String key, num start, num end) {
  if (isEmpty) {
    return <T>[];
  }
  return whereType<Map<String, dynamic>>()
      .where((element) =>
          element.containsKey(key) &&
          element[key] is num &&
          (element[key] as num) >= start &&
          (element[key] as num) <= end)
      .map((e) => e as T)
      .toList();
}