javascript - 如何从 ids 对象中删除项目

Question

const comments = {
  '1': { id: '1', text: 'please add code examples' },
  '2': { id: '2', text: 'examples would be great for this article' },
  '3': { id: '3', text: 'hi there' },
};

const removeItem = items => {
  delete items[1];
};

console.log(removeItem(comments));

我需要根据项目的唯一标识符删除项目。这显示 comments 已声明

Answer 1

如果你想删除一个特定的id，并且我希望你的对象键与它所拥有的id相同，你可以更改删除项以接受id参数并稍微修改一下函数，这样它就可以了会根据key属性删除对象。

var comments = {
    1: { id: '1', text: 'please add code examples' },
    2: { id: '2', text: 'examples would be great for this article' },
    3: { id: '3', text: 'hi there' },
  };

var removeItem = (items, id) => {
    delete items[id];
};

removeItem(comments, 1);

console.log(comments);