Get the Current Year in JavaScript

Get the current year in JavaScript

Create a new Date() object and call getFullYear():

new Date().getFullYear()  // returns the current year

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Example usage: a page footer that always shows the current year:

document.getElementById("year").innerHTML = new Date().getFullYear();

footer {
  text-align: center;
  font-family: sans-serif;
}

<footer>
    ©<span id="year"></span> by Donald Duck
</footer>

how to get first and last date of the current year javascript

This is how you can calculate the current date:

var currentDate = new Date();

You can instantiate Date using year, month and day, but keep in mind that month is indexed from 0:

var theFirst = new Date(currentDate.getFullYear(), 0, 1);
var theLast = new Date(currentDate.getFullYear(), 11, 31);

Shortest way to print current year in a website

Years later, when doing something else I was reminded that Date() (without new) returns a string, and a way that's one character shorter that my original below came to me:

<script>document.write(/\d{4}/.exec(Date())[0])</script>

The first sequence of four digits in the string from Date() is specified to be the year. (That wasn't specified behavior — though it was common — when my original answer below was posted.)

Of course, this solution is only valid for another 7,979 years (as of this writing in 2021), since as of the year 10000 it'll show "1000" instead of "10000".

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You've asked for a JavaScript solution, so here's the shortest I can get it:

<script>document.write(new Date().getFullYear())</script>

That will work in all browsers I've run across.

How I got there:

• You can just call getFullYear directly on the newly-created Date, no need for a variable. new Date().getFullYear() may look a bit odd, but it's reliable: the new Date() part is done first, then the .getFullYear().
• You can drop the type, because JavaScript is the default; this is even documented as part of the HTML5 specification, which is likely in this case to be writing up what browsers already do.
• You can drop the semicolon at the end for one extra saved character, because JavaScript has "automatic semicolon insertion," a feature I normally despise and rail against, but in this specific use case it should be safe enough.

It's important to note that this only works on browsers where JavaScript is enabled. Ideally, this would be better handled as an offline batch job (sed script on *nix, etc.) once a year, but if you want the JavaScript solution, I think that's as short as it gets. (Now I've gone and tempted fate.)

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However, unless you're using a server that can only provide static files, you're probably better off doing this on the server with a templating engine and using caching headers to allow the resulting page to be cached until the date needs to change. That way, you don't require JavaScript on the client. Using a non-defer/async script tag in the content also briefly delays the parsing and presentation of the page (for exactly this reason: because the code in the script might use document.write to output HTML).

How do I get the current date in JavaScript?

Use new Date() to generate a new Date object containing the current date and time.

var today = new Date();var dd = String(today.getDate()).padStart(2, '0');var mm = String(today.getMonth() + 1).padStart(2, '0'); //January is 0!var yyyy = today.getFullYear();
today = mm + '/' + dd + '/' + yyyy;document.write(today);

How can I correctly retrieve the current year value using JavaScript?

Use getFullYear() to return a four-digit year:

var oggi = new Date();
var year = oggi.getFullYear();

In fact, the getYear() method is deprecated and, as described, returns 0 for any year less than 1900.

Display current year using external javascript

Just try to add function invocation:

  document.addEventListener('DOMContentLoaded', function(){
      const year = document.querySelector('#year');

      function date() {
         year.innerHTML = new Date().getFullYear();
      };

      date();
  }

Print current year timestamp in HTML via JS

You must use date before use getfullyear

var date = new Date();
var year = date.getFullYear();

document.getElementById('copyright-year').innerHTML = ("Name " + year);

<div class="footer-content-3">
  <i class="far fa-copyright"></i>
  <h4 id="copyright-year"></h4>
</div>

Get all list of month and year from given date to current date

set the day of createdDate to 1

let givenDateTime = '2021-01-29T04:22:22.148Z';

let createdDate = new Date(givenDateTime);
createdDate.setDate(1);
let currentDate = new Date();
let dateAndYearList = [createdDate.toLocaleString('en', { month: 'long', year: 'numeric' })];

while (createdDate.setMonth(createdDate.getMonth() + 1) < currentDate) {
    dateAndYearList.unshift(createdDate.toLocaleString('en', { month: 'long', year: 'numeric' 
    }));
}

console.log(dateAndYearList)

how to get first date and last date from month and year in javascript

Try the following to get your expected output:

function GetFirstAndLastDate(year, month)
{
var firstDayOfMonth = new Date(year, month-1, 2);
var lastDayOfMonth = new Date(year, month, 1);

console.log('First Day: ' + firstDayOfMonth.toISOString().substring(0, 10));
console.log('Last Day: ' + lastDayOfMonth.toISOString().substring(0, 10));

}

GetFirstAndLastDate(2021, 10);

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