Question

I am totally new to javascript and I have a very easy to answer question: How do I use a current year string?

Should I look like this?

var currentyear = now.getYear();

And then I want to use that string in the following code snippet (The string should always replace the 2011)

drawDayEvents('2011-12-27', '#day1');
drawDayEvents('2011-12-28', '#day2');
drawDayEvents('2011-12-29', '#day3');
drawDayEvents('2011-12-30', '#day4');

...

var start = new Date(2011, 12-1, 27);
var end = new Date(2011, 12-1, 31);
if((time < start) || (time > end)) {
time.setYear(2011);

Does it has to be like this?

var currentyear = now.getYear();

drawDayEvents('$currentyear-12-27', '#day1');
drawDayEvents('$currentyear-12-28', '#day2');
drawDayEvents('$currentyear-12-29', '#day3');
drawDayEvents('$currentyear-12-30', '#day4');

...

var start = new Date($currentyear, 12-1, 27);
var end = new Date($currentyear, 12-1, 31);
if((time < start) || (time > end)) {
time.setYear($currentyear);

Answer 1

You should use getFullYear() instead because getYear() will return the year minus 1900.

var currentyear = now.getFullYear();

In this line:

drawDayEvents('$currentyear-12-27', '#day1');

JavaScript can’t interpolate variables like PHP can. You need to concat the strings.

drawDayEvents(currentyear+'-12-27', '#day1');

Variables in JavaScript don’t need to be prefixed with $ (they can contain a $ if you want).

var start = new Date(currentyear, 12-1, 27);
var end = new Date(currentyear, 12-1, 31);
if((time < start) || (time > end)) {
  time.setYear(currentyear);
}

Docs for JavaScript Date: https://developer.mozilla.org/en/JavaScript/Reference/Global_Objects/Date