如何建立在非全局语言环境中工作的“时刻"功能? [英] How can I build a 'moment' function that works in a non-global locale?

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.我该如何创建一个等效于moment(它的所有42个签名)的函数，该函数始终在与全局语言不同的特定语言环境中工作?

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 create a function equivalent to moment (all 42 signatures of it) that always works in a specific locale that's different from the global?

我在Web项目中有一个子模块，该子模块必须使用自定义语言环境.我们不希望在此特定子模块之外使用此语言环境，但我们希望在该子模块中内部一致地使用该语言环境.因此，我基本上希望像moment一样可以调用的moduleMoment(或其他任何东西)，但是它可以在自定义语言环境中使用.有内置的方法吗?

I have a submodule within a web project that has to work with a custom locale. We don't want this locale used outside this particular submodule, but we want it used consistently within that submodule. So I basically want a moduleMoment (or whatever) that I can call just like moment, but which works in the custom locale. Is there any built-in way to do that?

注意:我不是在说不是在谈论更改现有实例的语言环境，而是在打电话给moment使用其全局语言环境 other 的语言环境(具有各种不同的签名).所以这行不通:

Note: I'm not talking about changing the locale of an existing instance, I'm talking about calling the moment function (in all its various different signatures) using a locale other than its global locale. So this won't work:

var m = moment(args).locale(localeId);

...因为将在全局语言环境中处理args，然后事后在实例上更改语言环境，为时已晚.

...because the args will be processed in the global locale, and then the locale gets changed on the instance after the fact, which is too late.

推荐答案

我能找到的唯一方法是拥有一个临时设置区域设置的函数，调用moment，然后将区域设置恢复为上一个一个，像这样:

The only way I can find to do it is to have a function that temporarily sets the locale, calls moment, then sets the locale back to the previous one, like this:

function moduleMoment() {
    var prevLocaleId, m;

    prevLocaleId = moment.locale();
    try {
        moment.locale(customLocaleId);
        m = moment.apply(this, arguments);
        return m;
    } finally {
        moment.locale(prevLocaleId);
    }
}

或者可以将其添加到moment中，如下所示:

Or one could add it to moment, like this:

moment.localized = function(locale) {
    var prevLocaleId, m, args;

    prevLocaleId = moment.locale();
    try {
        moment.locale(locale);
        m = moment.apply(this, Array.prototype.slice.call(arguments, 1));
        return m;
    } finally {
        moment.locale(prevLocaleId);
    }
};

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