CODEWITHSUNDEEP
javascriptdate
rami wahdan
rami wahdan

Reputation: 13

changing selected date - year only - JS

I have a date let us say "17-2-1978" and i checked if it is in the past. While checking, if it is in the past, i want to change only the year to 2018. How can this be done?

code below:

function startCountDown(){
    var testing = document.getElementById("events-div").lastChild.textContent;
    alert(testing);    
    var selectedDate = new Date(testing);
    var now = new Date();
    if (selectedDate < now) {
        var d = new Date();
        var n = d.getFullYear()+1;
        selectedDate.setDate(selectedDate + n);
        alert(selectedDate);
    }
}

Upvotes: 1

Views: 540

Answers (2)

Jared
Jared

Reputation: 2096

You can use the setFullYear method. Example:

var d = new Date();
d.setFullYear(2018);

To display it in the format you want you can use getDate, getMonth and getYear

var formatted = [d.getDate(), d.getMonth() + 1, d.getYear()].join('-');

The month is zero-based, so you'll need to add 1 to it.

Upvotes: 2

HBK
HBK

Reputation: 735

First the date string needs to be correctly parsed to construct the date object:

var from = testing.split("-");
var d = new Date(from[2], from[1] - 1, from[0]);
var today = new Date();
if (d < today) {
    d.setFullYear(2018);
} else {
    //date is in future so no change
}

See example below:

var testing="17-2-1978";
var from = testing.split("-");
var d = new Date(from[2], from[1] - 1, from[0]);
var today = new Date();
if (d < today) {
    d.setFullYear(2018);
} else {
    //date is in future so no change
}
document.getElementById("date").innerHTML=d;
<p id="date"></p>

Upvotes: 1

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