performance.toJSON()

版本历史
版本变更
v19.0.0

This method must be called with the performance object as the receiver.

v16.1.0

新增于: v16.1.0

一个对象，它是 performance 对象的 JSON 表示形式。它类似于浏览器中的 window.performance.toJSON。

🌐 An object which is JSON representation of the performance object. It is similar to window.performance.toJSON in browsers.