I´m trying to create value and name array. The problem that i don´t know what is the right way for do this.
var send=[];
send=[
'latitud': widget.lat;
];
Somebody know how can i create array with index and values?
asked Mar 5, 2019 at 10:47
El Hombre Sin Nombre
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2 Answers
Dart uses Maps for this
to declare a map and you dont know what you will your map contain you can use
Map<String, dynamic> myObject = {'latitude': widget.lat} ;
In your Case you will need a list of objects so you can do it like that :
List<Map<String, dynamic>> send=[] ;
send.add(myObject) ;
Or :
List<Map<String, dynamic>> send=[] ;
send = [{'latitude': widget.lat}]; \\ if you want to assign it directly
2 Comments
samezedi
Please could you show me how i could remove the item. I mean would this work send.remove('latitude');
Daniel Wu
@samezedi In above example, send is not merely a Map, but a List of Map. Your code doesn't work because you are missing an index there. send[0].remove('latitude'); works, assuming you want to modify the first Map on the List.
You need a Map for that
var send = {'latitude': widget.lat};
If you really need an array, you can use for example an array of maps
var send = [{'latitude': widget.lat}, {'latitude': 123.456}];
answered Mar 5, 2019 at 10:50
Günter Zöchbauer
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