Simple client-side cookie reader/writer service in Typescript

cookie-manager.service.ts

import { Injectable } from '@angular/core';

@Injectable()
export class CookieManagerService {

    constructor() { }

    read(name: string) {
        const result = new RegExp('(?:^|; )' + encodeURIComponent(name) + '=([^;]*)').exec(document.cookie);
        return result ? JSON.parse(result[1]) : null;
    }

    write(name: string, value: any, days?: number) {
        if (!days) {
            days = 365 * 20;
        }
        const date = new Date();
        date.setTime(date.getTime() + (days * 24 * 60 * 60 * 1000));
        const expires = '; expires=' + date.toUTCString();
        document.cookie = name + '=' + JSON.stringify(value) + expires + '; path=/';
    }

    remove(name: string) {
        this.write(name, '', -1);
    }
}