country flag emoji <-> country code

Easy as pie:

import { getEmojiFlag } from "@cprecioso/country-flag-emoji"

getEmojiFlag("ES") // -> 🇪🇸

getEmojiFlag("nl") // -> 🇳🇱 (doesn't matter, upper or lower case)

// (we only keep the first two letters, so if you're using language codes like "en-US", you should take the last two letters yourself)
getEmojiFlag("pt-BR") // -> 🇵🇹 (oops!)
getEmojiFlag("pt-BR".slice(-2)) // -> 🇧🇷 (correct!)

getEmojiFlag(/* any two-letter country code (ISO 3166-1) */) // -> its corresponding flag emoji

And conversely:

import { getCountryCode } from "@cprecioso/country-flag-emoji"

getCountryCode("🇪🇸") // -> ES
getCountryCode("🇳🇱") // -> NL
getCountryCode("🇵🇹") // -> PT
getCountryCode("🇧🇷") // -> BR

getCountryCode(/* any flag emoji */) // -> its corresponding country code

This package uses CharCode math ✨magic✨, and not a database, so it's extremely lightweight and never goes out-of-date. However, emoji flag <-> ISO country code is the only feature it offers. If you need more, this is not your package.

Keep in mind that the manufacturer of your OS might choose not to display flags, displaying the country code in emoji letters instead. This is out of my control -- and basically, out of the control of anyone who is not the manufacter of your OS.