String.prototype.toEnglishDigits = function () { var num_dic = { ‘۰’: ‘0’, ‘۱’: ‘1’, ‘۲’: ‘2’, ‘۳’: ‘3’, ‘۴’: ‘4’, ‘۵’: ‘5’, ‘۶’: ‘6’, ‘۷’: ‘7’, ‘۸’: ‘8’, ‘۹’: ‘9’, } return parseInt(this.replace(/[۰-۹]/g, function (w) { return num_dic[w] })); }