如何在typescript接口中表示变量键名？

Question

interface Items {
    id: Item,
}

id is not optional but it will have different name

for example:

let items = {
34433ded : {name: "foo", price: 0.99},
14d433dee : {name: "bar", price: 1.99},
}

Answer 1

Something like:

interface Item {
    name: string;
    price: string;
}

type Items = { [id: string]: Item }

let items = {
    34433ded : {name: "foo", price: 0.99},
    14d433dee : {name: "bar", price: 1.99},
} as Items;

Answer 2

You can achive this by following structure:

interface Items {
    [key: string]: Item;
}

Here is your fiddle .
But remember due to JSON specification your object keys should't begin with numbers or if they do - you have to wrap them in quotes (as I did in fiddle)