Method push

packages/arctic/src/util/queue.ts:5–9

(item: T)

  private resolvers: ((value: T) => void)[] = []

  push(item: T) {
    const resolve = this.resolvers.shift()
    if (resolve) resolve(item)
    else this.queue.push(item)
  }

  async next(): Promise<T> {
    if (this.queue.length > 0) return this.queue.shift()!