解析日期字符串在特定的语言环境(不是时区！) [英] Parse a date string in a specific locale (not timezone!)

问题描述

使用MomentJS，如有必要，我可以使用.locale(或在较早版本中为.lang)在特定时刻实例(而不是全局)上设置区域设置.我如何使用除全局语言环境以外的特定语言环境来解析字符串?由于moment函数本身就是我们用于解析的东西，并且似乎没有.set变体可以进行完整解析?

With MomentJS, if necessary I can set a locale on a specific moment instance (rather than globally) using .locale (or .lang in older versions). How can I parse a string using a specific locale other than the global one? Since the moment function itself is what we use for parsing, and there doesn't seem to be a .set variant that does full parsing?

例如:

// Assume the default locale is 'en' (just in case, I'll set it for the snippet)
moment.locale('en');

// I have this string that's in the French locale
var str = "30 Avril 2015";

// Parsing it fails
var m = moment(str, "DD MMMM YYYY");
snippet.log(m.format("YYYY-MM-DD")); // "Invalid Date"

<script src="https://cdnjs.cloudflare.com/ajax/libs/moment.js/2.9.0/moment-with-locales.js"></script>
<!-- Script provides the `snippet` object, see http://meta.stackexchange.com/a/242144/134069 -->
<script src="http://tjcrowder.github.io/simple-snippets-console/snippet.js"></script>

推荐答案

从版本2.0.0开始，可以将语言环境键作为第三个参数传递给moment()和moment.utc()

As of version 2.0.0, a locale key can be passed as the third parameter to moment() and moment.utc()

// Assume the default locale is 'en' (just in case, I'll set it for the snippet)
moment.locale('en');

// I have this string that's in the French locale
var str = "30 Avril 2015";

// Parse it in 'fr'
var m = moment(str, "DD MMMM YYYY", "fr");

// Check result:
snippet.log(m.format("YYYY-MM-DD -- MMMM"));

// Check global locale
var locale = moment()._locale._abbr;
snippet.log('Locale : ' + locale);

<script src="https://cdnjs.cloudflare.com/ajax/libs/moment.js/2.9.0/moment-with-locales.js"></script>
<!-- Script provides the `snippet` object, see http://meta.stackexchange.com/a/242144/134069 -->
<script src="http://tjcrowder.github.io/simple-snippets-console/snippet.js"></script>

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