$ npm install is-unicode-supportedDetect whether the terminal supports Unicode
This can be useful to decide whether to use Unicode characters or fallback ASCII characters in command-line output.
Note that the check is quite naive. It just assumes all non-Windows terminals support Unicode and hard-codes which Windows terminals that do support Unicode. However, I have been using this logic in some popular packages for years without problems.
npm install is-unicode-supported
import isUnicodeSupported from 'is-unicode-supported';
isUnicodeSupported();
//=> true
Returns a boolean for whether the terminal supports Unicode.