JSDoc object with value props as key

Question

I have an items object with Items like this:

class Item {
    /**
     *@type {number}
     */
    id;
}

let items = {};

I want to document the fact that keys of items is value.id is there a way ot do so?

Currently I'm using this syntax.

/**
 * @type {{[item_id:number]:Item}}
 */
let items = {};

Answer 1

You can use Record

/**
 * @type {Record<Item['id'], Item>}
 */
let items = {};