performance.nodeTiming
此属性是 Node.js 的扩展。 它在 Web 浏览器中不可用。
PerformanceNodeTiming
类的实例,为特定的 Node.js 操作里程碑提供性能指标。
This property is an extension by Node.js. It is not available in Web browsers.
An instance of the PerformanceNodeTiming
class that provides performance
metrics for specific Node.js operational milestones.