Remove item coincide in array "distinct"

Question

I want to remove item coincide in array and produce distinct array

var arr = [
  {"name": "Peter"},
  {"name": "Hana"},
  {"name": "Jone"},
  {"name": "Peter"},
  {"name": "Peter"},
];

Result:

var arr = [
  {"name": "Peter"},
  {"name": "Hana"},
  {"name": "Jone"},
];

Answer 1

Here you go:

arr = arr.asMap().map((i, m)=> MapEntry<String, Map>(m["name"], m)).values.toList()