const list = [{ id: '1', name: '苹果' }, { id: '2', name: '香蕉' }, { id: '3', name: '梨子' }]

原数据格式↓

const data = [['1', '2', '3'], ['1'], ['1', '2']]

理想效果↓

 const newData = [{ name: '苹果,香蕉,梨子', id: '1,2,3' },
                  { name: '苹果', id: '1' },
                  { name: '苹果,香蕉', id: '1,2' }]

data就是选中的id，id对应的name在list里面，id和name多个的话用逗号隔开

请教各位大神该如何操作，小弟在这里先谢谢各位大神的解答了，感激不尽！

const list = [
      { id: "1", name: "苹果" },
      { id: "2", name: "香蕉" },
      { id: "3", name: "梨子" }
    ];
    const data = [["1", "2", "3"], ["1"], ["1", "2"]];
    const result = data.map(item => {
      return item.reduce((a, b) => {
        const { name } = list.find(r => r.id == b) || {};
        return {
          name: a.name ? `${a.name},${name}` : name,
          id: a.id ? `${a.id},${b}` : b
        };
      }, {});
    });
    console.log(result);
    //转回data
    const res = result.map(item => item.id.split(","));
    console.log(res);