来自MDN的建议:

function date_locale(thisDate, locale) {
  if (locale == undefined)
    locale = 'fr-FR';
  // set your default country above (yes, I'm french !)
  // then the default format is "dd/mm/YYY"

  if (thisDate == undefined) {
    var d = new Date();
  } else {
    var d = new Date(thisDate);
  }
  return d.toLocaleDateString(locale);
}

var thisDate = date_locale();
var dayN = thisDate.slice(0, 2);
var monthN = thisDate.slice(3, 5);
console.log(dayN);
console.log(monthN);

http://jsfiddle.net/v4qcf5x6/

function monthFormated(date) {
   //If date is not passed, get current date
   if(!date)
     date = new Date();

     month = date.getMonth();

    // if month 2 digits (9+1 = 10) don't add 0 in front 
    return month < 9 ? "0" + (month+1) : month+1;
}

我的解决方案:

function addLeadingChars(string, nrOfChars, leadingChar) {
    string = string + '';
    return Array(Math.max(0, (nrOfChars || 2) - string.length + 1)).join(leadingChar || '0') + string;
}

用法:

var
    date = new Date(),
    month = addLeadingChars(date.getMonth() + 1),
    day = addLeadingChars(date.getDate());

jsfiddle: http://jsfiddle.net/8xy4Q/1/

这就是我的解决方案:

function leadingZero(value) {
  if (value < 10) {
    return "0" + value.toString();
  }
  return value.toString();
}

var targetDate = new Date();
targetDate.setDate(targetDate.getDate());
var dd = targetDate.getDate();
var mm = targetDate.getMonth() + 1;
var yyyy = targetDate.getFullYear();
var dateCurrent = leadingZero(mm) + "/" + leadingZero(dd) + "/" + yyyy;

new Date().getMonth()方法以数字形式返回月份(0-11)

用这个函数你可以很容易地得到正确的月份数。

function monthFormatted() {
  var date = new Date(),
      month = date.getMonth();
  return month+1 < 10 ? ("0" + month) : month;
}

currentDate(){
        var today = new Date();
        var dateTime =  today.getFullYear()+'-'+
                        ((today.getMonth()+1)<10?("0"+(today.getMonth()+1)):(today.getMonth()+1))+'-'+
                        (today.getDate()<10?("0"+today.getDate()):today.getDate())+'T'+
                        (today.getHours()<10?("0"+today.getHours()):today.getHours())+ ":" +
                        (today.getMinutes()<10?("0"+today.getMinutes()):today.getMinutes())+ ":" +
                        (today.getSeconds()<10?("0"+today.getSeconds()):today.getSeconds());        
            return dateTime;
},