add json type for readJson/writeJson

[axetroy]

No description provided.

[j-f1]

Why can’t this use a type instead of an interface?

[ry]

A good question.

[axetroy]

Because if I use type

export type JSONPrimitive = string | number | boolean | null;
export type JSONValue = JSONPrimitive | JSONObject | JSONArray;
export interface JSONObject {
  [member: string]: JSONValue;
}
export type JSONArray = Array<JSONValue>

ts will report an error.

Type alias 'JSONValue' circularly references itself.ts(2456)

an ts error or eslint error. I choose the latter.

[kitsonk]

There have been long discussions on this in TypeScript land. There is not a good JSON type other than any (see the likes of microsoft/TypeScript#1897 and others). I would just keep it any which allows it to be cast to whatever. If TypeScript ever solves it we can adopt it them.