js

const sample = [
  {
    id: 1,
    name: "name1",
  },
  {
    id: 2,
    name: "name2",
  },
];

// mapを使ってidが1のnameをupdateに変更
const mapSample2 = sample.map((item) => {
  if (item.id === 1) {
    item.name = "update";
    return item;
  } else {
    return item;
  }
});
console.log(mapSample2);

// filterを使ってidが1オブジェクトを削除
const filterSample = sample.filter((item) => {
  if (item.id === 1) {
    return false;
  } else {
    return true;
  }
});
console.log(filterSample);