()
| 28 | } |
| 29 | |
| 30 | dequeue(): boolean { |
| 31 | if (this.pending) { |
| 32 | return false |
| 33 | } |
| 34 | const item = this.queue.shift() |
| 35 | if (!item) { |
| 36 | return false |
| 37 | } |
| 38 | this.pending = true |
| 39 | item |
| 40 | .promise() |
| 41 | .then(item.resolve) |
| 42 | .catch(item.reject) |
| 43 | .finally(() => { |
| 44 | this.pending = false |
| 45 | this.dequeue() |
| 46 | }) |
| 47 | return true |
| 48 | } |
| 49 | } |