javascript - 如何使用NodeJS将UTC日期格式化为“YYYY-MM-DD hh：mm：ss”字符串？(How to format a UTC date as a `YYYY-MM-DD hh:mm:ss` string using NodeJS?)

Question

Using NodeJS, I want to format a Date into the following string format:(使用NodeJS，我想将Date格式化为以下字符串格式：)

var ts_hms = new Date(UTC);
ts_hms.format("%Y-%m-%d %H:%M:%S");

How do I do that?(我怎么做？)

  ask by Tampa translate from so

Answer 1

If you're using Node.js, you're sure to have EcmaScript 5, and so Date has a toISOString method.(如果你正在使用Node.js，你肯定有EcmaScript 5，所以Date有一个toISOString方法。)

You're asking for a slight modification of ISO8601:(您要求稍微修改ISO8601：)

new Date().toISOString()
> '2012-11-04T14:51:06.157Z'

So just cut a few things out, and you're set:(所以只需剪掉一些东西，然后你就可以了：)

new Date().toISOString().
  replace(/T/, ' ').      // replace T with a space
  replace(/..+/, '')     // delete the dot and everything after
> '2012-11-04 14:55:45'

Or, in one line: new Date().toISOString().replace(/T/, ' ').replace(/\..+/, '')(或者，在一行中： new Date().toISOString().replace(/T/, ' ').replace(/\..+/, ''))

ISO8601 is necessarily UTC (also indicated by the trailing Z on the first result), so you get UTC by default (always a good thing).(ISO8601必须是UTC（也由第一个结果的尾随Z表示），因此默认情况下会获得UTC（总是一件好事）。)