# 如何计算白屏时间和首屏时间

Issue

欢迎在 Gtihub Issue 中回答此问题: Issue 469 (opens new window)

Author

白屏时间: window.performance.timing.domLoading - window.performance.timing.navigationStart

首屏时间: window.performance.timing.domInteractive - window.performace.timing.navigationStart

Author

首屏时间: window.performance.timing.domInteractive - window.performace.timing.navigationStart

window.performace.timing.navigationStart

performace -> performance 少了个 n