()
| 15306 | return this.parent.slice(this.index + 1) |
| 15307 | } |
| 15308 | getSiblings() { |
| 15309 | if (this.isRoot()) return [] |
| 15310 | return this.parent.filter(particle => particle !== this) |
| 15311 | } |
| 15312 | _getUid() { |
| 15313 | if (!this._uid) this._uid = Particle._makeUniqueId() |
| 15314 | return this._uid |