public class PrintStuff
{
public PrintStuff() {
PrintMe();
}

public void PrintMe() {
Console.Write('ME!');
}
}

public class PrintStuff2: PrintStuff
{

public new void PrintMe() {
Console.Write('new ME!');
}
}

// for ... in ...
for (var key in obj) {
    console.log(key,obj[key]);
}

// using Object.keys (IE9+) and a normal for loop
var keys=Object.keys(obj);
for (var i=0; i<keys.length; i++) {
    var key=keys[i];
    console.log(key,obj[key]);
}

// using the Array.prototype.forEach function (IE9+)
Object.keys(obj).forEach(function(key) {
    console.log(key,obj[key]);
});

// for ... of ... from the new ES6 specification
for (var key of Object.keys(obj)) {
    console.log(key,obj[key]);
}

var hasProperty = (typeof obj[key] != 'undefined')

var hasProperty = (obj[key] !== undefined)

for (var i=0; i<obj.attributes.length; i++) {
  var attr=obj.attributes[i];
  console.log({
    index:i,
    name:attr.nodeName,
    value:attr.nodeValue
  });
}

function PassAttr(elem1,elem2) {
for (var c=0; c<elem1.attributes.length; c++) {
var attr=elem1.attributes[c];
if (attr.name.substring(0,5)=='list_')
elem2.setAttribute(attr.name.substring(5),attr.value);
}
for (name in elem1)
if (name.substring(0,5)=='list_')
elem2.setAttribute(name.substring(5),elem1[name]);
}

function ValidatorConvert(op, dataType, val) {
    function GetFullYear(year) {
        return (year + parseInt(val.century)) - ((year < val.cutoffyear) ? 0 : 100);
    }
    var num, cleanInput, m, exp;
    if (dataType == "Integer") {
        exp = /^\s*[-\+]?\d+\s*$/;
        if (op.match(exp) == null)
            return null;
        num = parseInt(op, 10);
        return (isNaN(num) ? null : num);
    }
    else if(dataType == "Double") {
        exp = new RegExp("^\\s*([-\\+])?(\\d+)?(\\" + val.decimalchar + "(\\d+))?\\s*$");
        m = op.match(exp);
        if (m == null)
            return null;
        cleanInput = m[1] + (m[2].length>0 ? m[2] : "0") + "." + m[4];
        num = parseFloat(cleanInput);
        return (isNaN(num) ? null : num);
    }
    else if (dataType == "Currency") {
        exp = new RegExp("^\\s*([-\\+])?(((\\d+)\\" + val.groupchar + ")*)(\\d+)"
                        + ((val.digits > 0) ? "(\\" + val.decimalchar + "(\\d{1," + val.digits + "}))?" : "")
                        + "\\s*$");
        m = op.match(exp);
        if (m == null)
            return null;
        var intermed = m[2] + m[5] ;
        cleanInput = m[1] + intermed.replace(new RegExp("(\\" + val.groupchar + ")", "g"), "") + ((val.digits > 0) ? "." + m[7] : 0);
        num = parseFloat(cleanInput);
        return (isNaN(num) ? null : num);
    }
    else if (dataType == "Date") {
        var yearFirstExp = new RegExp("^\\s*((\\d{4})|(\\d{2}))([-/]|\\. ?)(\\d{1,2})\\4(\\d{1,2})\\s*$");
        m = op.match(yearFirstExp);
        var day, month, year;
        if (m != null && (m[2].length == 4 || val.dateorder == "ymd")) {
            day = m[6];
            month = m[5];
            year = (m[2].length == 4) ? m[2] : GetFullYear(parseInt(m[3],10))
        }
        else {
            if (val.dateorder == "ymd"){
                return null;
            }
            var yearLastExp = new RegExp("^\\s*(\\d{1,2})([-/]|\\. ?)(\\d{1,2})\\2((\\d{4})|(\\d{2}))\\s*$");
            m = op.match(yearLastExp);
            if (m == null) {
                return null;
            }
            if (val.dateorder == "mdy") {
                day = m[3];
                month = m[1];
            }
            else {
                day = m[1];
                month = m[3];
            }
            year = (m[5].length == 4) ? m[5] : GetFullYear(parseInt(m[6], 10))
        }
        month -= 1;
        var date = new Date(year, month, day,12,0,0); //BUG FIX
        return (typeof(date) == "object" && year == date.getFullYear() && month == date.getMonth() && day == date.getDate()) ? date.valueOf() : null;
    }
    else {
        return op.toString();
    }
}