Add A Year To Today's Date

I am trying to add a year to todays date. I am working in a system that does not allow you to use standard JavaScript.

For instance, to get todays date I have to use:

javascript:now();

I have tried:

javascript:now(+1);

I have never seen this before, but am in need of adding one year to todays date...

Has anyone seen getting current date this way before? And if so, how could I add a year?

Solution 1:

You can create a new date object with todays date using the following code:

var d = new Date();
    console.log(d);

If you want to create a date a specific time, you can pass the new Date constructor arguments

 var d = new Date(2014);
    console.log(d)

// => Wed Dec 31 1969 16:00:02 GMT-0800 (PST)

If you want to take todays date and add a year, you can first create a date object, access the relevant properties, and then use them to create a new date object

var d = new Date();
    var year = d.getFullYear();
    var month = d.getMonth();
    var day = d.getDate();
    var c = new Date(year + 1, month, day);
    console.log(c);

// => Tue Oct 11 2016 00:00:00 GMT-0700 (PDT)

You can read more about the methods on the date object on MDN

Date Object

Solution 2:

Use the Date.prototype.setFullYear method to set the year to what you want it to be.

For example:

const aYearFromNow = new Date();
aYearFromNow.setFullYear(aYearFromNow.getFullYear() + 1);
console.log(aYearFromNow);

There really isn't another way to work with dates in JavaScript if these methods aren't present in the environment you are working with.