Typescript's intriguing concept of objects containing arrays inside other objects

I have a structure similar to this and I am trying to create definitions for types/interfaces, but I am facing issues in making it work correctly.

layoutsSet: {
       1: {
        "lg": [
            {
                i: "1",
                x: 0,
                y: 0,
                w: 2,
                h: 2
            },
            {
                i: "2",
                x: 2,
                y: 0,
                w: 2,
                h: 2
            },
            {
                i: "3",
                x: 4,
                y: 0,
                w: 2,
                h: 2
            },
        ]
    }
};

This is how it currently appears. However, I need to make some adjustments as I am encountering errors during compilation:

TS2322: Type '{ "lg": { i: string; x: number; y: number; w: number; h: number; }[]; }' is not assignable to type 'Layouts'. Property 'md' is missing in type '{ "lg": { i: string; x: number; y: number; w: number; h: number; }[]; }'.

export interface Layout {
    i: string;
    x: number;
    y: number;
    w: number;
    h: number;
}

export enum Breakpoint {
    LG = "lg",
    MD = "md",
    SM = "sm",
    XS = "xs",
    XXS = "xxs"
}

export interface LayoutBreakpoint extends Array<Layout> {}

export type Layouts = {
    [b in Breakpoint]: LayoutBreakpoint
}

export interface LayoutsSet {
    [index: number]: Layouts
}

What modifications should be made to ensure that it functions correctly? Any assistance would be greatly appreciated.

// EDIT

The interesting thing is that after changing

export type Layouts = {
    [key: string]: LayoutBreakpoint
}

It started working...

However, why am I unable to define the index as an enum type?

Answer №1

When creating the LayoutsSet interface, make sure to avoid using variable names that are of type number. It is important to define meaningful and descriptive variable names within the interface.

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