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I keep getting the error "Uncaught TypeError: date3.getFullYear is not a function"

I have a date variable in both SQL and JS format (passed from another function as arguments):

min1 - in SQL format. [Like - '2017-08-13 0:0:00']
mindate - in JS format. [Like - 'Sun Aug 13 2017 00:00:00 GMT+0530 (India Standard Time)' ]

I am using these variables to create a new date variable called 'date3'. I have tried the following:

var date2 = min1.split(' ')[0]; // should give me '2017-08-13'
date3 = new Date(date2);

AND,

var date3 = new Date();
date3 = mindate;

AND,

var date3 = mindate;

AND,

var Y = parseInt(min1.split(' ')[0].split('-')[0]);       // 2017
var M = parseInt(min1.split(' ')[0].split('-')[1]) - 1;   // 7
var D = parseInt(min1.split(' ')[0].split('-')[2]);       // 13
var date3 = new Date(Y,M,D);

And when I console.log the date3, it gives the correct date. But when I do a getFullYear() on date3, it gives the error: "Uncaught TypeError: getFullYear is not a function"

I have tried everything and nothing seems to work. (I even read some other similar questions, and some answers were saying its because 'date' is a 'moment' object, but I don't understand what it means and how it can help resolve this).

UPDATE:

Here's how I am using the getFullYear function. I have tried two things:

datestring = date3.getFullYear() + '-' + (date3.getMonth()+1) + '-' + (date3.getDate());

AND

var y = date3.getFullYear(),
m = date3.getMonth() + 1, // january is month 0 in javascript
d = date3.getDate();

Am using this inside a 'for' loop, and the date3 was created just above the loop as follows:

var date3 = new Date(Y,M,D);
console.log(date3);

for (k=1; k<=x; k++) {

    var y = date3.getFullYear(),
    m = date3.getMonth() + 1, // january is month 0 in javascript
    d = date3.getDate();
    var pad = function(val) { var str = val.toString(); return (str.length < 2) ? "0" + str : str};
    datestring = [y, pad(m), pad(d)].join("-");
    console.log("DATESTRING", datestring);

    divCode += '<div class="swiper-slide" id="_' + datestring + '" data-hash="' + datestring + '"><b>' +datestring+ '</b><br><br>' +tableCode+ '</div>';

    // Incrementing date by 1
    date3 = date3.setDate(date3.getDate() + 1);


}

I keep getting the error "Uncaught TypeError: date3.getFullYear is not a function"

I have a date variable in both SQL and JS format (passed from another function as arguments):

min1 - in SQL format. [Like - '2017-08-13 0:0:00']
mindate - in JS format. [Like - 'Sun Aug 13 2017 00:00:00 GMT+0530 (India Standard Time)' ]

I am using these variables to create a new date variable called 'date3'. I have tried the following:

var date2 = min1.split(' ')[0]; // should give me '2017-08-13'
date3 = new Date(date2);

AND,

var date3 = new Date();
date3 = mindate;

AND,

var date3 = mindate;

AND,

var Y = parseInt(min1.split(' ')[0].split('-')[0]);       // 2017
var M = parseInt(min1.split(' ')[0].split('-')[1]) - 1;   // 7
var D = parseInt(min1.split(' ')[0].split('-')[2]);       // 13
var date3 = new Date(Y,M,D);

And when I console.log the date3, it gives the correct date. But when I do a getFullYear() on date3, it gives the error: "Uncaught TypeError: getFullYear is not a function"

I have tried everything and nothing seems to work. (I even read some other similar questions, and some answers were saying its because 'date' is a 'moment' object, but I don't understand what it means and how it can help resolve this).

UPDATE:

Here's how I am using the getFullYear function. I have tried two things:

datestring = date3.getFullYear() + '-' + (date3.getMonth()+1) + '-' + (date3.getDate());

AND

var y = date3.getFullYear(),
m = date3.getMonth() + 1, // january is month 0 in javascript
d = date3.getDate();

Am using this inside a 'for' loop, and the date3 was created just above the loop as follows:

var date3 = new Date(Y,M,D);
console.log(date3);

for (k=1; k<=x; k++) {

    var y = date3.getFullYear(),
    m = date3.getMonth() + 1, // january is month 0 in javascript
    d = date3.getDate();
    var pad = function(val) { var str = val.toString(); return (str.length < 2) ? "0" + str : str};
    datestring = [y, pad(m), pad(d)].join("-");
    console.log("DATESTRING", datestring);

    divCode += '<div class="swiper-slide" id="_' + datestring + '" data-hash="' + datestring + '"><b>' +datestring+ '</b><br><br>' +tableCode+ '</div>';

    // Incrementing date by 1
    date3 = date3.setDate(date3.getDate() + 1);


}

• javascript
• date

Share Improve this question Follow edited Aug 13, 2017 at 23:35 RobG 148k3232 gold badges179179 silver badges214214 bronze badges asked Aug 13, 2017 at 20:08 coderDcoderD 26511 gold badge33 silver badges1313 bronze badges 8

• 1 Update the code to show the exact usage of date3.getFullYear() – Dekel Commented Aug 13, 2017 at 20:12
• OK, so its working fine outside the for loop. – coderD Commented Aug 13, 2017 at 20:25
• I'm afraid I don't see any for loop in your code... – Dekel Commented Aug 13, 2017 at 20:26
• I am sorry, I updated it.. – coderD Commented Aug 13, 2017 at 20:30
• 1 Please see How to create a minimal, plete and verifiable example. It seems this is actually a duplicate of Add +1 to current date. Note also that "2017-08-13" will be parsed as UTC (mostly) so will appear to be the wrong date sometimes if the host offset is not +0000. – RobG Commented Aug 13, 2017 at 23:35

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1 Answer 1

Sorted by: Reset to default 4

The setDate method works inplace on the object, and the return value of the function is the timestamp of the new date.

When you did:

date3 = date3.setDate(date3.getDate() + 1);

in your function, the date3 is now an integer (and not a Date() object), so basically what your code does now is 1502742691133.getFullYear(), and this is wrong.

You don't need to set the value of setDate() to date3. Just do:

date3.setDate(date3.getDate() + 1);

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