remove duplicates objects from array angular

1this.item = this.item.filter((el, i, a) => i === a.indexOf(el))

1const addresses = [...]; // Some array I got from async call
2
3const uniqueAddresses = Array.from(new Set(addresses.map(a => a.id)))
4 .map(id => {
5   return addresses.find(a => a.id === id)
6 })

1function remove_duplicate_objects(data,prop) {
2    var seen = {};
3    data = data.filter(function (entry) {
4      if (seen.hasOwnProperty(entry[prop])) {
5        return false;
6      }
7
8      seen[entry.prop] = entry;
9      return true;
10    });
11    return data
12  }
13
14const new_array = remove_duplicate_objects([array with objects inside])