Remove all duplicates from an Array of objects

gistfile1.txt

/*
arr = [ {id: 1, name: 'Foo'}, {id: 1, name: 'Foo'}]
*/
let noDuplicates = arr.filter((obj_a, index, self) =>
  index === self.findIndex((obj_b) => (
    obj_a.attr === obj_b.attr //CHANGE attr for any attribute, like id
  ))
)