CODEWITHSUNDEEP
angularjstypescript
stevo
stevo

Reputation: 2284

TypeScript equal value and equal type doesn't work

I just starting with TypeScript. I using TypeScript for my new AngularJS project. I run into the problem that id from type number is actually a type of string. Did I miss a case? 

interface IRouteParams extends ng.route.IRouteParamsService {
    id: number;
}

class FooController {
    constructor(private $routerParams: IRouteParams, private fooService: IFooService) {
        fooService.getById($routerParams.id);
    }
}

export interface IFooService {  
    getById(id: number): ng.IPromise<number>;
}

class FooService implements IFooService {

    getById(id: number): angular.IPromise<number> {
        const defer = this.$q.defer<IRace>();

        if (id === -1) {
           // not working           
        }

        return defer.promise;
    }
}

Upvotes: 0

Views: 121

Answers (1)

Ryan Cavanaugh
Ryan Cavanaugh

Reputation: 221192

Route parameters are always strings (because they come from the URL). Writing id: number in TypeScript doesn't change that. You should write id: string when defining a route parameter.

Upvotes: 1

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