how to remove duplicate object in array javascript

1let person = [{name: "john"}, {name: "jane"}, {name: "imelda"}, {name: "john"}];
2
3function removeDuplicates(data, key) {
4  
5  return [
6    ...new Map(data.map(item => [key(item), item])).values()
7  ]
8
9};
10
11console.log(removeDuplicates(person, item => item.name));

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 })

1let person = [
2{name: "john"}, 
3{name: "jane"}, 
4{name: "imelda"}, 
5{name: "john"},
6{name: "jane"}
7];
8
9const data = Array.from(new Set(person.map(JSON.stringify))).map(JSON.parse);
10console.log(data);

1let person = [
2{name: "john"}, 
3{name: "jane"}, 
4{name: "imelda"}, 
5{name: "john"},
6{name: "jane"}
7];
8
9const obj = [...new Map(person.map(item => [JSON.stringify(item), item])).values()];
10console.log(obj);

1arr.reduce((acc, current) => {
2  const x = acc.find(item => item.id === current.id);
3  if (!x) {
4    return acc.concat([current]);
5  } else {
6    return acc;
7  }
8}, []);

1arr.filter((v,i,a)=>a.findIndex(t=>(t.place === v.place && t.name===v.name))===i)
2