Posts in "c-sharp" - Alan Edwardes

About the Author

Alan is a hobbyist Game Developer and a Software Engineer at Autodesk.

Posts in May 2020

Serving Localised Assets from S3 Using Lambda@Edge on the 17th

Posts in November 2019

Automating macOS Notarization for UE4 on the 23rd

Posts in July 2018

ISO Country Code to Unicode Flag in C# and JavaScript on the 22nd

Posts in January 2018

Serverless Git LFS for Game Development on the 6th
Adding Custom Map Checks in UE4 on the 3rd

Posts in December 2017

Building and Deploying a React App Using AWS Lambda on the 24th
Git HTTP Username and Password in Environment Variables on the 22nd
Capturing and Uploading Screenshots in UE4 on the 20th
Using Capsule Shadows on Large Objects in UE4 on the 8th

Category "c-sharp"

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ISO Country Code to Unicode Flag in C# and JavaScript

Posted July 22nd, 2018, last updated July 23rd, 2020 in c-sharp

The Unicode 6.0 spec defines Regional Indicator symbols, which includes a set of flags. Here are the founders of NATO, if your system supports the flag characters (Windows 10 doesn't yet):

🇧🇪 🇨🇦 🇩🇰 🇫🇷 🇮🇸 🇮🇹 🇱🇺 🇳🇱 🇳🇴 🇵🇹 🇬🇧 🇺🇸

To create a flag, take the country ISO code (for example GB), and offset it to the flags Unicode block.

C#

public static string IsoCountryCodeToFlagEmoji(this string country)
{
    return string.Concat(country.ToUpper().Select(x => char.ConvertFromUtf32(x + 0x1F1A5)));
}

string gb = "gb".IsoCountryCodeToFlagEmoji(); // 🇬🇧
string fr = "fr".IsoCountryCodeToFlagEmoji(); // 🇫🇷

JavaScript

function isoCountryCodeToFlagEmoji(country)
{
   return String.fromCodePoint(...[...country.toUpperCase()].map(c => c.charCodeAt() + 0x1F1A5));
}

let gb = isoCountryCodeToFlagEmoji("gb"); // 🇬🇧
let fr = isoCountryCodeToFlagEmoji("fr"); // 🇫🇷