Convert a letter to its regional indicator emoji

Map a–z to the regional indicator symbols 🇦–🇿.

JavaScript Version 1.0.0 · MIT · .md

function letterToEmoji(letter) { return String.fromCodePoint(letter.toLowerCase().charCodeAt(0) + 127365); }

Input & expected output

"b"

"🇧"

The edge case

"Z"

"🇿"

Know the limits

• Input is one ASCII letter. Two indicators side by side render as a country flag in many fonts.

The function above is the implementation used by the lab. The lab validates JSON types and caps size before execution; include equivalent validation when accepting untrusted input in your application.

Keep exploring

• Capitalize a string — Uppercase the first Unicode code point and preserve the remaining text.
• Reverse a string — Reverse Unicode code points without splitting surrogate pairs.
• Check a palindrome — Compare a string with its code-point reversal.