Take one object from many of the same object in array in Javascript

Question

I have array of object like this :

var myArr = [
    {"id": 1, "name": "john"},
    {"id": 2, "name": "frank"},
    {"id": 1, "name": "john"},
    {"id": 3, "name": "andrey"}
];

if there is the same object then shown one, like this :

var myArr = [
    {"id": 1, "name": "john"},
    {"id": 2, "name": "frank"},
    {"id": 3, "name": "andrey"}
];

anyone please help me. thanks.