how to map through a Map in dart code example

Example 1: dart map foreach

void main() { 
   var usrMap = {"name": "Tom", 'Email': '[email protected]'}; 
   usrMap.forEach((k,v) {
     print('${k}: ${v}');
   }); 
}

Example 2: dart loop through map

main() {
  var numMap = Map();
  numMap["one"] = 1;
  numMap["two"] = 2;
  numMap["three"] = 3;
  numMap["four"] = 4;
  numMap["five"] = 5;

  numMap.forEach((k, v) => print("Key : $k, Value : $v"));
}