The longest one should be "6799990100000000019" which is 19 digits. Have you seen something else?

Well, they're consistent and line up now. Still looks bloated on a 4k monitor, but fuck it.

Added, thanks!

I wasn't. I was using this:

<table>
<thead>
<tr>
<th align="center">Name</th>
<th align="center">Starts with</th>
<th align="center">Card Length (digits)</th>
<th align="center">Example</th>
</tr>
</thead>
<tbody>
<tr>
<td align="center">Dankort</td>
<td align="center">5019</td>
<td align="center">16</td>
<td align="center">5019717010103742</td>
</tr>
<tr>
<td align="center">Unionpay</td>
<td align="center">62 or 88</td>
<td align="center">16 - 19</td>
<td align="center">6222821234560017</td>
</tr>
<tr>
<td align="center">UATP</td>
<td align="center">1</td>
<td align="center">15</td>
<td align="center">108046752964787</td>
</tr>
<tr>
<td align="center">Maestro</td>
<td align="center">50, 56 - 58, 63, 67</td>
<td align="center">12 - 19</td>
<td align="center">6759000000000018</td>
</tr>
<tr>
<td align="center">Visa Electron</td>
<td align="center">4026, 417500, 4405, 4508, 4844, 4913 or 4917</td>
<td align="center">16 - 19</td>
<td align="center">4917300800000000</td>
</tr>
</tbody>
</table>```

Just tried it and looks identical :/ Do you know of any better looking tables on Codewars?

Thanks very much. I found a big gap in coverage from that, which affected all issuers which had multiple non-sequential starting digits.

I'll try to format the tables better, but I'm pretty sure it's out of my hands and down to CodeWar's markdown implementation.

This has been resolved with a description rewrite.

Thanks, updated to not be shit this time! :)

Thanks, Updated examples and description.

Thanks, updated the description. :)

Yeah, I totally forgot to explain that bit. Visa Electron is a subset of Visa. Totally valid issue, thanks!

Thanks, fixed.

Edit: As a note, the more accurate one should take priority (because Dankort specifies to 4 digits that match, it should be that) but I didn't describe that. I'll update the description shortly :)

Good spot. Fixed.

Thanks, done.

Just for futuree reference, the Java reference solution (Dr. Maths solution) takes 2 seconds longer than the JS one (5.3s vs 3.2s).

Adding Thread.sleep(14000); into the test, the reference solution passed with 800ms spare, so warriors should have up to 14000-15000ms to complete the challenge. I can set a timeout for the tests if we want to keep it more inline with the existing JS and Python challenges.