This property getter must be called with the PerformanceResourceTiming object as the receiver.
PerformanceResourceTiming
新增于: v18.2.0, v16.17.0
高分辨率毫秒时间戳，表示 Node.js 完成资源的域名查询后立即的时间。
【The high resolution millisecond timestamp representing the time immediately after the Node.js finished the domain name lookup for the resource.】