32.js

/**
 
从某数据库接口得到如下值：

{
  rows: [
    ["Lisa", 16, "Female", "2000-12-01"],
    ["Bob", 22, "Male", "1996-01-21"]
  ],
  metaData: [
    { name: "name", note: '' },
    { name: "age", note: '' },
    { name: "gender", note: '' },
    { name: "birthday", note: '' }
  ]
}
rows 是数据，metaData 是对数据的说明。现写一个函数 parseData，将上面的对象转化为期望的数组：

[
  { name: "Lisa", age: 16, gender: "Female", birthday: "2000-12-01" },
  { name: "Bob", age: 22, gender: "Male", birthday: "1996-01-21" },
]

 */
const parseData = (data) => {
  // 循环rows.length次
  const { rows, metaData } = data;
  const columns = metaData.map(v => v.name);
  return rows.map((v, i) => {
    let parseObj = {};
    v.map((v, i) => {
      parseObj = {
        ...parseObj,
        [columns[i]]: v,
      }
    });
    return parseObj;
  });
}

const data = {
  rows: [
    ["Lisa", 16, "Female", "2000-12-01"],
    ["Bob", 22, "Male", "1996-01-21"]
  ],
  metaData: [
    { name: "name", note: '' },
    { name: "age", note: '' },
    { name: "gender", note: '' },
    { name: "birthday", note: '' }
  ]
};

console.log(parseData(data));

const parseData = (data) => data.rows.map(x => {
  return data.metaData.reduce((acc, meta, i) => ({ ...acc, [meta.name]: x[i] }) , {})
})