| replace | function getFlagEmoji(countryCode) {
return countryCode.toUpperCase().replace(/./g, char =>
String.fromCodePoint(127397 + char.charCodeAt())
);
}
getFlagEmoji('de')
getFlagEmoji('CH')
| ready |
| original | function getFlagEmoji(countryCode) {
const codePoints = countryCode
.toUpperCase()
.split('')
.map(char => 127397 + char.charCodeAt());
return String.fromCodePoint(...codePoints);
}
getFlagEmoji('de')
getFlagEmoji('CH')
| ready |
| spread + reduce template | function getFlagEmoji(countryCode) {
return [...countryCode.toUpperCase()].map(char =>
String.fromCodePoint(127397 + char.charCodeAt())
).reduce((a, b) => `${a}${b}`);
}
getFlagEmoji('de')
getFlagEmoji('CH')
| ready |
| spread + reduce plus | function getFlagEmoji(countryCode) {
return [...countryCode.toUpperCase()].map(char =>
String.fromCodePoint(127397 + char.charCodeAt())
).reduce((a, b) => a + b);
}
getFlagEmoji('de')
getFlagEmoji('CH')
| ready |
| join | function getFlagEmoji(countryCode) {
return [...countryCode.toUpperCase()].map(char =>
String.fromCodePoint(127397 + char.charCodeAt())
).join('');
}
getFlagEmoji('de')
getFlagEmoji('CH')
| ready |
| new | function getFlagEmoji(countryCode) {
return [...countryCode.toUpperCase()].reduce((accumulator, char) =>
accumulator + String.fromCodePoint(127397 + char.charCodeAt()), '');
}
getFlagEmoji('de')
getFlagEmoji('CH')
| ready |
| reverse | function getCountryCode(flagEmoji) {
const codePoints = [...flagEmoji].map(char => char.codePointAt(0));
const countryCode = String.fromCharCode(...codePoints.map(codePoint => codePoint - 127397));
return countryCode.toLowerCase();
}
getCountryCode('🇩🇪')
getCountryCode('🇨🇭')
| ready |