JarCastingos-locale 
Get the system locale
Useful for localizing your module or app.
POSIX systems: The returned locale refers to the LC_MESSAGE category, suitable for selecting the language used in the user interface for message translation.
Install
$ npm install os-locale
Usage
const osLocale = require('os-locale');
(async () => {
console.log(await osLocale());
//=> 'en-US'
})();
API
osLocale(options?)
Returns a Promise for the locale.
osLocale.sync(options?)
Returns the locale.
options
Type: object
spawn
Type: boolean
Default: true
Set to false to avoid spawning subprocesses and instead only resolve the locale from environment variables.
os-locale for enterprise
Available as part of the Tidelift Subscription.
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