const replaceDiacritics = str => {
        str = `${str}`;
        const diacritics = [
            /[\300-\306]/g, /[\340-\346]/g, // A, a
            /[\310-\313]/g, /[\350-\353]/g, // E, e
            /[\314-\317]/g, /[\354-\357]/g, // I, i
            /[\322-\330]/g, /[\362-\370]/g, // O, o
            /[\331-\334]/g, /[\371-\374]/g, // U, u
            /[\321]/g, /[\361]/g, // N, n
            /[\307]/g, /[\347]/g, // C, c
        ];
        const chars = ['A', 'a', 'E', 'e', 'I', 'i', 'O', 'o', 'U', 'u', 'N', 'n', 'C', 'c'];

        for (let i = 0; i < diacritics.length; i++) {
            str = str.replace(diacritics[i], chars[i]);
        }
        return str;
    };

// replace all non ascii characters (space to tilde)
const newStr = replaceDiacritics(String(oldStr)).replace(/[^ -~]+/gmi, '');