English Digit to Persian

en2fa.js

/*
 * English digit to persian
 * Copyright(C) 2009 by Amin Akbari [ http://eAmin.me/ ]
 * Licensed under the MIT Style License [http://www.opensource.org/licenses/mit-license.php]
 *
 */

String.prototype.toFaDigit = function() {
	return this.replace(/\d+/g, function(digit) {
		var ret = '';
		for (var i = 0, len = digit.length; i < len; i++) {
			ret += String.fromCharCode(digit.charCodeAt(i) + 1728);
		}

		return ret;
	});
};

example.js

"012345srh6srh789".toFaDigit(); //  ۰۱۲۳۴۵srh۶srh۷۸۹

"۰۱۲۳۴۵srh۶srh۷۸۹".toEnDigit(); //  012345srh6srh789

fa2en.js

/*
 * Persian digit to English
 * Copyright(C) 2009 by Amin Akbari [ http://eAmin.me/ ]
 * Licensed under the MIT Style License [http://www.opensource.org/licenses/mit-license.php]
 *
 */

String.prototype.toEnDigit = function() {
	return this.replace(/[\u06F0-\u06F9]+/g, function(digit) {
		var ret = '';
		for (var i = 0, len = digit.length; i < len; i++) {
			ret += String.fromCharCode(digit.charCodeAt(i) - 1728);
		}

		return ret;
	});
};