Year string in Javascript

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);

user529758 · Accepted Answer · 2011-12-30 19:27:25Z

11

You can get the year like this:

var yr = new Date().getFullYear();

then use the + (string concatenation) operator to join it to another string:

drawDayEvents(yr + "-12-27", "#day1");

answered Dec 30, 2011 at 19:27

user529758

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Comments

gen_Eric · Accepted Answer · 2011-12-30 19:39:14Z

5

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

edited Dec 30, 2011 at 19:39

answered Dec 30, 2011 at 19:24

gen_Eric

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14 Comments

Micheal Perr Over a year ago

var currentyear = now.getFullYear(); ? is $currentyear right or not?

James Montagne Over a year ago

now isn't a keyword either.

Jared Farrish Over a year ago

time is not declared, either. Suppose that and now should be clarified.

gen_Eric Over a year ago

@MichealPerr: No, $currentyear is not right. It's just currentyear, you don't need the $.

gen_Eric Over a year ago

@JaredFarrish: I'm assuming that time and now were declared earler.

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