typescript - 将类型 'Map' 转换为 Typescript 中的类型 '{ [key: string]: string; }'

Question

我是 typescript 的新手。我有一张 typescript map ，如下所示:

const mapping = new Map<string, string>();
mapping.set('fruit', 'apple')
mapping.set('vegetable', 'onion')
...

我正在尝试将映射转换为类型 '{ [key: string]: string; }'

如何在 typescript 中做到这一点？

Answer 1

简单地做:

Object.fromEntries(mapping)

引用:

• Object.fromEntries() | MDN

---

Complete example:

const mapping = new Map<string, string>()

mapping.set('fruit', 'apple')
mapping.set('vegetable', 'onion')

console.log(mapping)

// { [key: string]: string } is same as Record<string, string>
const record: { [key: string]: string } = Object.fromEntries(mapping)

console.log(record)