- case 'name': return compare(a.name, b.name, isAsc);
- case 'version': return compare(a.version, b.version, isAsc);
- case 'status': return compare(a.status, b.status, isAsc);
+ case 'name': return this.compare(a.name, b.name, isAsc);
+ case 'version': return this.compare(a.version, b.version, isAsc);