如何在Node.js中获得microtime？ [英] How to get a microtime in Node.js?

问题描述

如何在Node.js中获得最准确的时间戳？

How can I get the most accurate time stamp in Node.js?

ps我的Node.js版本是0.8.X和 node-microtime扩展对我不起作用（安装时崩溃）

ps My version of Node.js is 0.8.X and the node-microtime extension doesn't work for me (crash on install)

推荐答案

new Date（）。getTime（）？这给你一个以毫秒为单位的时间戳，这是JS给你的最准确的。

new Date().getTime()? This gives you a timestamp in milliseconds, which is the most accurate that JS will give you.

更新：如vaughan所述， process.hrtime （）在Node.js中可用 - 它的分辨率是纳秒，因此它的分辨率要高得多，这并不意味着它必须更精确。

Update: As stated by vaughan, process.hrtime() is available within Node.js - its resolution are nanoseconds and therefore its much higher, also this doesn't mean it has to be more exact.

PS：为了更清楚， process.hrtime（）返回一个元组数组包含当前高分辨率实时，[秒，纳秒]

PS.: Just to be clearer, process.hrtime() returns you a tuple Array containing the current high-resolution real time in a [seconds, nanoseconds]

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