class Article {
    title;
    comments;

    constructor(title) {
        this.title = title;
        this.comments = [];
    }

    comment = class Comment {
        info;
        logs;

        constructor(info) {
            this.info = info;
            this.logs = [];
        }

        moreInfo = class MoreInfo {
            information;

            constructor(information) {
                this.information = information;
            }
        }
    };
}

let art = new Article('My Article');

let comment = new art.comment('comment1');
comment.logs.push(new comment.moreInfo('moreInfo1'))

art.comments.push(comment)
console.log(art.comments[0].logs[0].information); // moreInfo1