Question

How to create a two dimensional (2D) array in Dart

Answer 1

void main() {
    int rows = 3;
    int cols = 4;
     
    var lst = List.generate(rows, (i) => List.filled(cols, 0));
 
    print(lst);
}
 
 
 
/*
run:
 
[[0, 0, 0, 0], [0, 0, 0, 0], [0, 0, 0, 0]]
 
*/

 

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Answer 2

void main() {
    int rows = 3;
    int cols = 4;
 
    var lst = List.generate(rows, (i) => List.filled(cols, 0), growable: false);
 
    lst.forEach((row) {
        print(row);
    });
}
 
 
  
/*
run:
  
[0, 0, 0, 0]
[0, 0, 0, 0]
[0, 0, 0, 0]
  
*/

 

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