Method on

test/lib/next-modes/base.ts:933–938

(event: Event, cb: (...args: any[]) => any)

  }

  public on(event: Event, cb: (...args: any[]) => any) {
    if (!this.events[event]) {
      this.events[event] = new Set()
    }
    this.events[event].add(cb)
  }

  public off(event: Event, cb: (...args: any[]) => any) {
    this.events[event]?.delete(cb)