Javascript Turkish character to english characters change

js-turkish-to-english.js

String.prototype.turkishtoEnglish = function () {
    return this.replace('Ğ','g')
        .replace('Ü','u')
        .replace('Ş','s')
        .replace('I','i')
        .replace('İ','i')
        .replace('Ö','o')
        .replace('Ç','c')
        .replace('ğ','g')
 		.replace('ü','u')
        .replace('ş','s')
        .replace('ı','i')
        .replace('ö','o')
        .replace('ç','c');
};

// Example
// let text = 'Ne güzel bir gökkuşağı';
// newText = text.turkishtoEnglish();
// console.log(newText) /Ne guzel bir gokkusagi

Herkese merhaba, biraz daha guncel bir cozum:

With ES2015/ES6 String.prototype.normalize(),

const turkish_letters_to_convert = 'Ç,Ğ,İ,Ö,Ş,Ü,ç,ğ,ı,i,ö,ş,ü';

console.log(turkish_letters_to_convert.normalize('NFD').replace(/\p{Diacritic}/gu, ''));

// Expected output: "C,G,I,O,S,U,c,g,ı,i,o,s,u"

The example uses the combination of "Canonical Decomposition (NFD)" with Unicode property escapes.

See the source: https://stackoverflow.com/a/37511463