Answers for "dart check if index exists"

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how to check whether index is exist or not in dart

List<int> numbers = [1, 2, 3, 4, 5,];

//Check if index 7 is valid
if (numbers.asMap().containsKey(7)) {
  print('Exists');
} else {
  print('Doesn't exist');
}

Posted by: Guest on March-20-2021

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