Typescript: readonly property in class cannot be accessed

Question

export declare class Config {
    readonly ROUTE_TYPE_CREATE: string;
}

import { Config } from "./Config";

export default class NewComponent {
    constructor() {
        this.routeType = Config.ROUTE_TYPE_CREATE;
    }
}

When I compile code, it returns:

ERROR in [at-loader] ./new.cpn.ts:12:33 
    TS2339: Property 'ROUTE_TYPE_CREATE' does not exist on type 'typeof Config'.

What is the problem? Why is it unaccessible?

ssube · Accepted Answer · 2017-07-12 04:29:43Z

3

You declared an instance property on Config, but not a static property named Config.ROUTE_TYPE_CREATE. Add static and it should work:

declare class Config {
    static readonly ROUTE_TYPE_CREATE: string; 
}

The error message hints at this, if you read it very carefully:

Property 'ROUTE_TYPE_CREATE' does not exist on type 'typeof Config'.

If you had an instance, that would read on type 'Config', but you're working with the class directly.

edited Jul 12, 2017 at 4:29

answered Jul 12, 2017 at 4:16

ssube

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