How can I spread a List in Dart-CodePudding

I am ne to dart.
In python it was

[["A","B"],["C","D","E"],["F","G"]]

In dart It was Showing error Help me

CodePudding user response：

Just use spread operator '...'

[...["A","B"],...["C","D","E"],...["F","G"]]

Hope it helps

CodePudding user response：

void main() {
  // example 1
  print([...['A', 'B'], ...['C', 'D', 'E'], ...['F', 'G']]);
  // output: [A, B, C, D, E, F, G]

  // example 2
  var characters1 = <String>['A', 'B'];
  var characters2 = <String>['C', 'D', 'E'];
  var characters3 = <String>['F', 'G'];
  var allCharacters = [...characters1, ...characters2, ...characters3];
  print(allCharacters);
  // output: [A, B, C, D, E, F, G]
}

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