WebAug 16, 2024 · Create a new Map in Dart/Flutter. Using new keyword, we can create a new Map. Don’t forget to import dart:collection library before using these syntax containing HashMap, LinkedHashMap, SplayTreeMap, also other code in the rest of this tutorial.. import 'dart:collection'; main() { HashMap hashMap = new HashMap(); … WebDec 11, 2024 · Sorted by: 3. The reason you are unable to save it in the Preferences even after converting it into a list is that you are trying to save StringList ( prefs.setStringList) whereas your set is of type WordPair. A workaround for that could be, prefs.setStringList ('saved', _saved.map ( (WordPair wordPairItem) => wordPairItem.toString ()).toList ...
dart - How to convert functions to class in flutter - Stack Overflow
WebAug 16, 2024 · Create a new Map in Dart/Flutter. Using new keyword, we can create a new Map. Don’t forget to import dart:collection library before using these syntax containing HashMap, LinkedHashMap, … WebMar 29, 2024 · List ls = (json ['data'] as List).map ( (s) => s.toUpperCase ()).toList (); casts the dynamic JSON data to a List. The types are fully constrained and the Dart analyzer/IntelliJ infers s to be Static type: String. The runtime warning that sometimes occurs and related answers to use .cast () is what led to this question. cytomel to synthroid
Dart convert every element of list - Stack Overflow
WebJun 29, 2024 · import 'dart:convert'; import 'dart:typed_data'; // Text to byte: List byteIntList = utf8.encode ('yourTextHere'); // Text to Uint8List: Uint8List myUint8List = utf8.encode ('yourTextHere') as Uint8List; // List to Uint8List: Uint8List myUint8List = Uint8List.fromList (byteIntList); Share Improve this answer Follow WebFeb 14, 2024 · 4. JsonDecode returns List but your another list is of type List>. So convert it to same type of list by creating to any Model and overriding == and hashcode. and to compare two list you need ListEquality function. example : Function eq = const ListEquality ().equals; print (eq (list1,list2)); WebJun 1, 2016 · 1 Answer Sorted by: 45 Use map () and toList () for this. toList () is necessary because map () returns only an Iterable: stringValues.map ( (val) => int.parse (val)).toList () or shorter (thanks to @AlexandreArdhuin) stringValues.map (int.parse).toList () Dartpad example Share Improve this answer Follow edited Jun 1, 2016 at 10:22 cytomel to levothyroxine