Home/ Questions/Q 9249869
In Process

The Archive Base Latest Questions

Editorial Team
  • 0
Asked: 2026-06-18T10:18:20+00:00

I have this date parsed from an api as a string: DD-MM-YYYY but sometimes

  • 0

I have this date parsed from an api as a string:
DD-MM-YYYY but sometimes the date is DD-M-YYYY or even D-M-YYYY.

For example:

4-1-2013
or
10-10-2013
or 7-4-2013

The year is always 4 digits but days or months sometimes get one digit. How can I manually (with JS) add 0 in front of a every single digit ?

I am using moment.js for some calculations thus I am remove the ‘-‘ using 

date.replace("-", "")

to get a whole number (eg. 4-1-2013 = 412013) so I can use it with moment.js but if its a single digit, it all gets messed up.

Share

Leave an answer

You must login to add an answer.

Need An Account,

1 Answer

  1. Editorial Team

    You can normalise your strings first like this:

    date = date.replace(/\b(\d{1})\b/g, '0$1');

    which will take any “word” that is just a single digit and prepend a zero.

    Note that to globally replace every - you must use the regexp version of .replace – the string version you’ve used only replaces the first occurrence, therefore:

    date = date.replace(/\b(\d{1})\b/g, '0$1').replace(/-/g, '');

    will do everything you require.

    • 0