Get emoji flag by country code

Question

There is a list of countries codes, I need to attach emoji flag to each one. Is there a way to extract unicode from it or find emoji for country code?

This npm example looks similar for my goal (but uses hexadecimal as input) https://github.com/thekelvinliu/country-code-emoji/blob/master/src/index.js

What do you mean `it uses hex as input`? This method takes a String, `throw new TypeError('argument must be a string');` What is the problem you are having? Whay can you not just rewrite this in Java, if that is your usecase, it seems like all you need from here is the offset from 0 to the first unicode character. — Matt Clark, Feb 14 '17 at 19:38

score 35 · Accepted Answer · edited May 23 '17 at 10:31

35

This code snippet worked for me. Just replace "US" with whichever valid country code (based on the Regional Indicator Symbol Letters) you like and it will create a String flag containing the flag emoji for that country. (Reference)

int flagOffset = 0x1F1E6;
int asciiOffset = 0x41;

String country = "US";

int firstChar = Character.codePointAt(country, 0) - asciiOffset + flagOffset;
int secondChar = Character.codePointAt(country, 1) - asciiOffset + flagOffset;

String flag = new String(Character.toChars(firstChar))
            + new String(Character.toChars(secondChar));

This answer helped

edited May 23 '17 at 10:31

Community

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answered Feb 14 '17 at 20:06

Carl Poole

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how to do square shape emoji country flag? – Nitin Karale Feb 12 '19 at 12:22
1

@NitinKarale You should create a new question rather than using a comment. The short answer though is that you can't control that. – smithkm Sep 08 '19 at 18:39
I like this approach, but I need this functionality in Angular and JavaScript/TypeScript do not have the same functions for characters; is this also possible for Angular? – Torsten N. Mar 02 '20 at 09:09
@TorstenN. you have to do another question. SO is not a forum. – Leandro Bardelli Oct 02 '20 at 16:38

score 8 · Answer 2 · edited May 12 '19 at 22:39

function getFlags($code){
    $code = strtoupper($code);
    if($code == 'AD') return '';
    if($code == 'AE') return '';
    if($code == 'AF') return '';
    if($code == 'AG') return '';
    if($code == 'AI') return '';
    if($code == 'AL') return '';
    if($code == 'AM') return '';
    if($code == 'AO') return '';
    if($code == 'AQ') return '';
    if($code == 'AR') return '';
    if($code == 'AS') return '';
    if($code == 'AT') return '';
    if($code == 'AU') return '';
    if($code == 'AW') return '';
    if($code == 'AX') return '';
    if($code == 'AZ') return '';
    if($code == 'BA') return '';
    if($code == 'BB') return '';
    if($code == 'BD') return '';
    if($code == 'BE') return '';
    if($code == 'BF') return '';
    if($code == 'BG') return '';
    if($code == 'BH') return '';
    if($code == 'BI') return '';
    if($code == 'BJ') return '';
    if($code == 'BL') return '';
    if($code == 'BM') return '';
    if($code == 'BN') return '';
    if($code == 'BO') return '';
    if($code == 'BQ') return '';
    if($code == 'BR') return '';
    if($code == 'BS') return '';
    if($code == 'BT') return '';
    if($code == 'BV') return '';
    if($code == 'BW') return '';
    if($code == 'BY') return '';
    if($code == 'BZ') return '';
    if($code == 'CA') return '';
    if($code == 'CC') return '';
    if($code == 'CD') return '';
    if($code == 'CF') return '';
    if($code == 'CG') return '';
    if($code == 'CH') return '';
    if($code == 'CI') return '';
    if($code == 'CK') return '';
    if($code == 'CL') return '';
    if($code == 'CM') return '';
    if($code == 'CN') return '';
    if($code == 'CO') return '';
    if($code == 'CR') return '';
    if($code == 'CU') return '';
    if($code == 'CV') return '';
    if($code == 'CW') return '';
    if($code == 'CX') return '';
    if($code == 'CY') return '';
    if($code == 'CZ') return '';
    if($code == 'DE') return '';
    if($code == 'DJ') return '';
    if($code == 'DK') return '';
    if($code == 'DM') return '';
    if($code == 'DO') return '';
    if($code == 'DZ') return '';
    if($code == 'EC') return '';
    if($code == 'EE') return '';
    if($code == 'EG') return '';
    if($code == 'EH') return '';
    if($code == 'ER') return '';
    if($code == 'ES') return '';
    if($code == 'ET') return '';
    if($code == 'FI') return '';
    if($code == 'FJ') return '';
    if($code == 'FK') return '';
    if($code == 'FM') return '';
    if($code == 'FO') return '';
    if($code == 'FR') return '';
    if($code == 'GA') return '';
    if($code == 'GB') return '';
    if($code == 'GD') return '';
    if($code == 'GE') return '';
    if($code == 'GF') return '';
    if($code == 'GG') return '';
    if($code == 'GH') return '';
    if($code == 'GI') return '';
    if($code == 'GL') return '';
    if($code == 'GM') return '';
    if($code == 'GN') return '';
    if($code == 'GP') return '';
    if($code == 'GQ') return '';
    if($code == 'GR') return '';
    if($code == 'GS') return '';
    if($code == 'GT') return '';
    if($code == 'GU') return '';
    if($code == 'GW') return '';
    if($code == 'GY') return '';
    if($code == 'HK') return '';
    if($code == 'HM') return '';
    if($code == 'HN') return '';
    if($code == 'HR') return '';
    if($code == 'HT') return '';
    if($code == 'HU') return '';
    if($code == 'ID') return '';
    if($code == 'IE') return '';
    if($code == 'IL') return '';
    if($code == 'IM') return '';
    if($code == 'IN') return '';
    if($code == 'IO') return '';
    if($code == 'IQ') return '';
    if($code == 'IR') return '';
    if($code == 'IS') return '';
    if($code == 'IT') return '';
    if($code == 'JE') return '';
    if($code == 'JM') return '';
    if($code == 'JO') return '';
    if($code == 'JP') return '';
    if($code == 'KE') return '';
    if($code == 'KG') return '';
    if($code == 'KH') return '';
    if($code == 'KI') return '';
    if($code == 'KM') return '';
    if($code == 'KN') return '';
    if($code == 'KP') return '';
    if($code == 'KR') return '';
    if($code == 'KW') return '';
    if($code == 'KY') return '';
    if($code == 'KZ') return '';
    if($code == 'LA') return '';
    if($code == 'LB') return '';
    if($code == 'LC') return '';
    if($code == 'LI') return '';
    if($code == 'LK') return '';
    if($code == 'LR') return '';
    if($code == 'LS') return '';
    if($code == 'LT') return '';
    if($code == 'LU') return '';
    if($code == 'LV') return '';
    if($code == 'LY') return '';
    if($code == 'MA') return '';
    if($code == 'MC') return '';
    if($code == 'MD') return '';
    if($code == 'ME') return '';
    if($code == 'MF') return '';
    if($code == 'MG') return '';
    if($code == 'MH') return '';
    if($code == 'MK') return '';
    if($code == 'ML') return '';
    if($code == 'MM') return '';
    if($code == 'MN') return '';
    if($code == 'MO') return '';
    if($code == 'MP') return '';
    if($code == 'MQ') return '';
    if($code == 'MR') return '';
    if($code == 'MS') return '';
    if($code == 'MT') return '';
    if($code == 'MU') return '';
    if($code == 'MV') return '';
    if($code == 'MW') return '';
    if($code == 'MX') return '';
    if($code == 'MY') return '';
    if($code == 'MZ') return '';
    if($code == 'NA') return '';
    if($code == 'NC') return '';
    if($code == 'NE') return '';
    if($code == 'NF') return '';
    if($code == 'NG') return '';
    if($code == 'NI') return '';
    if($code == 'NL') return '';
    if($code == 'NO') return '';
    if($code == 'NP') return '';
    if($code == 'NR') return '';
    if($code == 'NU') return '';
    if($code == 'NZ') return '';
    if($code == 'OM') return '';
    if($code == 'PA') return '';
    if($code == 'PE') return '';
    if($code == 'PF') return '';
    if($code == 'PG') return '';
    if($code == 'PH') return '';
    if($code == 'PK') return '';
    if($code == 'PL') return '';
    if($code == 'PM') return '';
    if($code == 'PN') return '';
    if($code == 'PR') return '';
    if($code == 'PS') return '';
    if($code == 'PT') return '';
    if($code == 'PW') return '';
    if($code == 'PY') return '';
    if($code == 'QA') return '';
    if($code == 'RE') return '';
    if($code == 'RO') return '';
    if($code == 'RS') return '';
    if($code == 'RU') return '';
    if($code == 'RW') return '';
    if($code == 'SA') return '';
    if($code == 'SB') return '';
    if($code == 'SC') return '';
    if($code == 'SD') return '';
    if($code == 'SE') return '';
    if($code == 'SG') return '';
    if($code == 'SH') return '';
    if($code == 'SI') return '';
    if($code == 'SJ') return '';
    if($code == 'SK') return '';
    if($code == 'SL') return '';
    if($code == 'SM') return '';
    if($code == 'SN') return '';
    if($code == 'SO') return '';
    if($code == 'SR') return '';
    if($code == 'SS') return '';
    if($code == 'ST') return '';
    if($code == 'SV') return '';
    if($code == 'SX') return '';
    if($code == 'SY') return '';
    if($code == 'SZ') return '';
    if($code == 'TC') return '';
    if($code == 'TD') return '';
    if($code == 'TF') return '';
    if($code == 'TG') return '';
    if($code == 'TH') return '';
    if($code == 'TJ') return '';
    if($code == 'TK') return '';
    if($code == 'TL') return '';
    if($code == 'TM') return '';
    if($code == 'TN') return '';
    if($code == 'TO') return '';
    if($code == 'TR') return '';
    if($code == 'TT') return '';
    if($code == 'TV') return '';
    if($code == 'TW') return '';
    if($code == 'TZ') return '';
    if($code == 'UA') return '';
    if($code == 'UG') return '';
    if($code == 'UM') return '';
    if($code == 'US') return '';
    if($code == 'UY') return '';
    if($code == 'UZ') return '';
    if($code == 'VA') return '';
    if($code == 'VC') return '';
    if($code == 'VE') return '';
    if($code == 'VG') return '';
    if($code == 'VI') return '';
    if($code == 'VN') return '';
    if($code == 'VU') return '';
    if($code == 'WF') return '';
    if($code == 'WS') return '';
    if($code == 'XK') return '';
    if($code == 'YE') return '';
    if($code == 'YT') return '';
    if($code == 'ZA') return '';
    if($code == 'ZM') return '';
    return '';
}

+1 Thanks it helped me in PHP and JavaScript, but remember this is linear search, so it will not give best performance if it is used heavily. — Accountant م, May 12 '19 at 03:50
@Accountantم doesn't work in that way in a compiled language. In C++ or C# the structure is jumped at evaluation point. — Leandro Bardelli, Oct 02 '20 at 16:37
@Leandro even with short-circuit evaluation it's still a linear search. This is less efficient than, for instance, a hash lookup: O(n) vs O(1) on average. It has nothing to do with whether the language is compiled or interpreted. — Rab, Oct 03 '20 at 12:49

score 2 · Answer 3 · edited May 02 '22 at 10:46

const input = document.getElementById("input");
const btn = document.getElementById("btn");

function getFlagEmoji(countryCode) {
  const codePoints = countryCode.toUpperCase().split("").map((char) => 127397 + char.charCodeAt(0));
  return String.fromCodePoint(...codePoints);
}

btn.addEventListener("click", e => {
  e.preventDefault();
  console.log(getFlagEmoji(input.value));
});

<input type="text" id="input" placeholder="Country Code" maxlength="2" />
<button id="btn">Get Emoji</button>

score 1 · Answer 4 · answered Aug 14 '20 at 13:26

For PHP I always use this one, calculates the character index with hex2bin:


function parseCountryCodeToFlag(string $code): string
{
    $exceptions = [
        'en' => 'gb',
        'uk' => 'gb',
    ];

    $code = str_replace(array_keys($exceptions), array_values($exceptions), $code);

    $emoji = [];
    foreach(str_split($code) as $c) {
        if(($o = ord($c)) > 64 && $o % 32 < 27) {
            $emoji[] = hex2bin("f09f87" . dechex($o % 32 + 165));
            continue;
        }
        
        $emoji[] = $c;
    }

    return join($emoji);
}

score 1 · Answer 5 · answered Feb 04 '21 at 06:01

If anyone looking for a Unity/C# version...

public string GetCountryFlagEmojiFromCode(string countryCode) {

    int flagOffset = 0x1F1E6;
    int asciiOffset = 0x41;

    int firstChar = char.ConvertToUtf32(countryCode, 0) - asciiOffset + flagOffset;
    int secondChar = char.ConvertToUtf32(countryCode, 1) - asciiOffset + flagOffset;
        
    String flag = char.ConvertFromUtf32(firstChar) + char.ConvertFromUtf32(secondChar);
    return flag;

}

Get emoji flag by country code

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