如何从多个数组创建对象数组

Question

给定以下数组：

var ids = [1,2,3]; //Hundreds of elements here
var names = ["john","doe","foo"]; //Hundreds of elements here
var countries = ["AU","USA,"USA"]; //Hundreds of elements here

生成具有与此类似结构的对象数组的最佳性能方法是什么：

var items = [
    {id:1,name:"john",country:"AU"},
    {id:2,name:"doe",country:"USA"},
    ...
];

Answer 1

您应该能够简单地映射所有 id，保留对索引的引用，并根据该索引构建对象。

var items = ids.map((id, index) => {
  return {
    id: id,
    name: names[index],
    country: countries[index]
  }
});