Typescript extended types declaration












1















I have the following interfaces:



export interface x {
a: string;
}

export interface y extends x {
b: string;
}

export interface z extends x {
c: string;
}


What I want is to declare a property that accepts an Array of a mix of y and z Objects, or basically any Object that is an extended Version of x. Is that possible? Perhaps something like this?



export interface n {
d: <T extends x>;
}









share|improve this question























  • Only objects that extend x? Or x too?

    – Frank Modica
    Nov 27 '18 at 19:43











  • Either is fine. But out of interest... what would be the solution if I only wanted Objects that extend x?

    – Cocktail
    Nov 27 '18 at 20:33











  • I'm actually not sure, you might have to create a dummy interface like interface dummy extends x {} and then use that. Maybe someone else knows of a better way.

    – Frank Modica
    Nov 27 '18 at 20:38
















1















I have the following interfaces:



export interface x {
a: string;
}

export interface y extends x {
b: string;
}

export interface z extends x {
c: string;
}


What I want is to declare a property that accepts an Array of a mix of y and z Objects, or basically any Object that is an extended Version of x. Is that possible? Perhaps something like this?



export interface n {
d: <T extends x>;
}









share|improve this question























  • Only objects that extend x? Or x too?

    – Frank Modica
    Nov 27 '18 at 19:43











  • Either is fine. But out of interest... what would be the solution if I only wanted Objects that extend x?

    – Cocktail
    Nov 27 '18 at 20:33











  • I'm actually not sure, you might have to create a dummy interface like interface dummy extends x {} and then use that. Maybe someone else knows of a better way.

    – Frank Modica
    Nov 27 '18 at 20:38














1












1








1








I have the following interfaces:



export interface x {
a: string;
}

export interface y extends x {
b: string;
}

export interface z extends x {
c: string;
}


What I want is to declare a property that accepts an Array of a mix of y and z Objects, or basically any Object that is an extended Version of x. Is that possible? Perhaps something like this?



export interface n {
d: <T extends x>;
}









share|improve this question














I have the following interfaces:



export interface x {
a: string;
}

export interface y extends x {
b: string;
}

export interface z extends x {
c: string;
}


What I want is to declare a property that accepts an Array of a mix of y and z Objects, or basically any Object that is an extended Version of x. Is that possible? Perhaps something like this?



export interface n {
d: <T extends x>;
}






typescript






share|improve this question













share|improve this question











share|improve this question




share|improve this question










asked Nov 27 '18 at 19:39









CocktailCocktail

82




82













  • Only objects that extend x? Or x too?

    – Frank Modica
    Nov 27 '18 at 19:43











  • Either is fine. But out of interest... what would be the solution if I only wanted Objects that extend x?

    – Cocktail
    Nov 27 '18 at 20:33











  • I'm actually not sure, you might have to create a dummy interface like interface dummy extends x {} and then use that. Maybe someone else knows of a better way.

    – Frank Modica
    Nov 27 '18 at 20:38



















  • Only objects that extend x? Or x too?

    – Frank Modica
    Nov 27 '18 at 19:43











  • Either is fine. But out of interest... what would be the solution if I only wanted Objects that extend x?

    – Cocktail
    Nov 27 '18 at 20:33











  • I'm actually not sure, you might have to create a dummy interface like interface dummy extends x {} and then use that. Maybe someone else knows of a better way.

    – Frank Modica
    Nov 27 '18 at 20:38

















Only objects that extend x? Or x too?

– Frank Modica
Nov 27 '18 at 19:43





Only objects that extend x? Or x too?

– Frank Modica
Nov 27 '18 at 19:43













Either is fine. But out of interest... what would be the solution if I only wanted Objects that extend x?

– Cocktail
Nov 27 '18 at 20:33





Either is fine. But out of interest... what would be the solution if I only wanted Objects that extend x?

– Cocktail
Nov 27 '18 at 20:33













I'm actually not sure, you might have to create a dummy interface like interface dummy extends x {} and then use that. Maybe someone else knows of a better way.

– Frank Modica
Nov 27 '18 at 20:38





I'm actually not sure, you might have to create a dummy interface like interface dummy extends x {} and then use that. Maybe someone else knows of a better way.

– Frank Modica
Nov 27 '18 at 20:38












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export interface n {
d: Array<x>;
}





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    export interface n {
    d: Array<x>;
    }





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      export interface n {
      d: Array<x>;
      }





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        export interface n {
        d: Array<x>;
        }





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        export interface n {
        d: Array<x>;
        }






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        answered Nov 27 '18 at 19:43









        Frank ModicaFrank Modica

        6,5342728




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