Enum inside class (TypeScript definition file)

Question

I\'ve searched around but can\'t seem to find an answer for this, hopefully you can help. How can I add an enum to Image? This is what I would like ideally but I get an error.

Answer 1

I'm not sure what you intend to do, but I would have expected that you would want an enum to represent the possible state values, and then a state member on the image to indicate the current state of the image.

declare module 'Lib' {
    export module Graphics {

        enum State {
            STATE_IDLE,
            STATE_LOADING,
            STATE_READY,
            STATE_ERROR
        }

        export class Image {
            public state: State;

            constructor();
        }

    }
}

It sounds like you want to declare a class that has enum-like members, rather than declare an enum within a class. i.e:

declare module 'Lib' {

    export module Graphics {

        export class Image {
            static STATE_IDLE: number;
            static STATE_LOADING: number;
            static STATE_READY: number;
            static STATE_ERROR: number;

            constructor();
        }
    }
}