如何将Array转换为ES6新Map类型？

Question

想象一下我有一个数组，例如：

[obj1, obj2, obj3]

ObjX类似于：

{id:'something',a:1,b:2,...}

如何将其转换为ES6地图类型？

Answer 1

只需执行以下操作：

let firstArray = [obj1, obj2, obj3]
// i randomly selected id to be my Map key, could be any other
let myKeyValueArray = firstArray.map(item=>[item.id,item])
let myMap = new Map(myKeyValueArray)

Reference