RegExp.anyOneOf = function (/*pattern0, pattern1, pattern2, ...*/) {
        var _pattern = "\\s*" + arguments[0] + "\\s*";
        for (var _i = 1; _i < arguments.length; _i++) {
                _pattern += "|\\s*" + arguments[_i] + "\\s*";
        }
        return new RegExp(_pattern, "g");
};
 

var _regExp = RegExp.anyOneOf("abcde", "edcba");
var _result = _regExp.exec("string searched");