class AudioBookmark { constructor(bookmark) { this.title = null this.time = null this.createdAt = null if (bookmark) { this.construct(bookmark) } } toJSON() { return { title: this.title || '', time: this.time, createdAt: this.createdAt } } construct(bookmark) { this.title = bookmark.title || '' this.time = bookmark.time || 0 this.createdAt = bookmark.createdAt } setData(time, title) { this.title = title this.time = time this.createdAt = Date.now() } } module.exports = AudioBookmark