Match user search with hamza in Arabic ( أ، ا ، آ ، إ ) against a list of words - UTF8

match_arabic_hmaz_letter.js

let match_arabic = (user_input, word) => {
    let user_input_regx = "";
    
    // البحث عن أ، ا ، آ و إ
    let hamz_letters = ["أ", "ا", "آ", "إ"].join("|")
    const hamz_regx = new RegExp(hamz_letters);
    
    for (let d = 0, len = user_input.length; d < len; d++) {
        user_input_regx += ( hamz_regx.test(user_input.charAt(d)) ? "[" + hamz_letters + "]" : user_input.charAt(d) ); 
    }
    
    user_input_regx = new RegExp(user_input_regx);

    return user_input_regx.test(word);
};


let user_input_possiblites = [
    "الاردن",
    "الأردن",
    "الآردن"
];

let word = 'الأردن';
user_input_possiblites.forEach(item => {
    console.log(item, match_arabic(item, word) ? "Matched" : "Not Matched");
});