(quantity = 1)
| 15920 | return this.limit(quantity, 0) |
| 15921 | } |
| 15922 | last(quantity = 1) { |
| 15923 | return this.limit(quantity, this.length - quantity) |
| 15924 | } |
| 15925 | // todo: preserve subclasses! |
| 15926 | limit(quantity, offset = 0) { |
| 15927 | const result = new Particle() |