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Compile time const methods in Flutter

Is there a way to create compile-time methods in Dart/Flutter? I want to create a helper method to return DataTable headers. The old code looks as follows: DataTable( columns: const [ DataColumn(label: Row(children: [Icon(Icons.foo1), Text('Bar 1')])), DataColumn(label: Row(children: [Icon(Icons.foo2), Text('Bar…

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Flutter – Changing the state

I have a function checkAvailability that changes the state of variable isTaken to true if the condition matches . checkAvailabiltiy(String text){ for(var snapshot in allData){ var name = snapshot['username'].toString().toLowerCase(); if(text.toLowerCase() == name){ setState(() { isTaken =true; }); } else{ }…

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