How to remove sub string from string?

Question

I have this string:

27/06/2016

or:

15/10/2005

I need to convert the string above to this:

27/06/16

or

15/10/05

How can I implement it in Javascript?

w3schools.com/jsref/tryit.asp?filename=tryjsref_substring

naresh vadlakonda
– naresh vadlakonda

2016-07-06 08:56:31 +00:00
Commented Jul 6, 2016 at 8:56 — naresh vadlakonda
– naresh vadlakonda, Commented Jul 6, 2016 at 8:56

Mark · Accepted Answer · 2016-07-06 08:57:33Z

3

Moment.js is the best library to use for date manipulation, it does this easily:

moment('15/10/2005', 'DD/MM/YYYY').format('DD/MM/YY');

answered Jul 6, 2016 at 8:57

Mark

5,17820 gold badges67 silver badges128 bronze badges

Sign up to request clarification or add additional context in comments.

2 Comments

George G Over a year ago

this is really good, when you need time manipulations often, and don't have too many js files, coz adding extra 20kb load to your page is somewhat heavy thing. cheers

George G Over a year ago

and still this is beautiful solution

bfmags · Accepted Answer · 2016-07-06 14:25:48Z

2

Using Regular Expressions

/(?!.*\/)../

https://regex101.com/r/tV3mA5/1

str.replace(/(?!.*\/)../,'')

https://jsfiddle.net/dmj12oge/

edited Jul 6, 2016 at 14:25

answered Jul 6, 2016 at 9:36

bfmags

2,9452 gold badges19 silver badges30 bronze badges

1 Comment

nnnnnn Over a year ago

This doesn't work. Try 10/12/2016, or any day in February.

George G · Accepted Answer · 2016-07-06 09:18:51Z

1

You can use simple string manipulation methods:

function shortDate(str) 
{
    return str.substring(0, 6) + str.substring(8, 10);
}

var dt = shortDate('27/06/2016');
// returns 27/06/16

edited Jul 6, 2016 at 9:18

answered Jul 6, 2016 at 8:55

George G

7,73512 gold badges48 silver badges62 bronze badges

1 Comment

CompanyDroneFromSector7G Over a year ago

I was halfway through typing a near identical solution when this appeared!

Weedoze · Accepted Answer · 2016-07-06 08:51:30Z

1

If you are sure that the date is valid you can use this function

function formatDate (input) {
    var datePart = input.match(/\d+/g);
    year = datePart[2].substring(2); // get only two digits
    month = datePart[1];
    day = datePart[0];
    return day+'/'+month+'/'+year;
}

answered Jul 6, 2016 at 8:51

Weedoze

14k2 gold badges38 silver badges65 bronze badges

Comments

Raghuram Vadapalli · Accepted Answer · 2016-07-06 08:57:01Z

1

You can follow this procedure.

Old_date = '27/06/2016';
New_date = Old_date.split('/');
New_date[2] = New_date[2].substring(2);
New_date = New_date.join('/');

edited Jul 6, 2016 at 8:57

answered Jul 6, 2016 at 8:56

Raghuram Vadapalli

1,2392 gold badges14 silver badges29 bronze badges

Comments

Abhay · Accepted Answer · 2016-07-06 09:04:30Z

0

function reformat(dateStr)
{
dArr = dateStr.split("/");
return dArr[0]+ "/" +dArr[1]+ "/" +dArr[2].substring(2);     
}

answered Jul 6, 2016 at 9:04

Abhay

4133 silver badges13 bronze badges

1 Comment

HDJEMAI Over a year ago

Consider adding some comment to your answer.

nnnnnn · Accepted Answer · 2016-07-06 09:16:59Z

0

If you are certain the input will always be in exactly that format then you can do it in one line with a simple regex-based string replace:

var output = input.replace(/..(..)$/,"$1");

Of course, you could make the regex more specific with \d for digits, but again if you know the input format is fixed . works fine to do a generic "remove the third- and fourth-last characters from any string".

answered Jul 6, 2016 at 9:16

nnnnnn

150k30 gold badges210 silver badges247 bronze badges

Comments

van_folmert · Accepted Answer · 2016-07-06 13:55:45Z

0

If you want to work on real dates instead of strings:

function parseDate(input) {
    var parts = input.match(/(\d+)/g);

    return new Date(parts[2], parts[1], parts[0]);
}

function formatDate(date) {
    var day = date.getDate();
    var month = date.getMonth();
    var year = date.getFullYear().toString().substr(2);

    return day + '/' + month + '/' + year;
}

and then simply:

formatDate(parseDate('27/05/2016')); // returns "27/5/16"

edited Jul 6, 2016 at 13:55

answered Jul 6, 2016 at 9:05

van_folmert

4,60911 gold badges53 silver badges100 bronze badges

1 Comment

nnnnnn Over a year ago

This won't work because (a) JS dates use zero-based months, and (b) the OP wants two-digit day and month. (Also you should check how .substr()'s arguments work.)

Collectives™ on Stack Overflow

How to remove sub string from string?

8 Answers 8

2 Comments

1 Comment

1 Comment

Comments

Comments

1 Comment

Comments

1 Comment

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

8 Answers 8

2 Comments

1 Comment

1 Comment

Comments

Comments

1 Comment

Comments

1 Comment

Your Answer

Sign up or log in

Post as a guest

Related