JS golfer. Also working on C/python/ruby/perl/assembly (or brainfuck!). Please unban me from discord (I just submitted evil numbers solution such that there is much shorter method in CGSE, is you are banning for 8+ months?)

Card Number Validation in JavaScript in Bytes Play Hole

16^th in JavaScript and 122^nd overall.

Last tested 5 days ago.

Runtime of 6ms.

Bytes	Chars	Submitted
73	73	9 Jul 2026
74	74	9 Jul 2026
75	75	9 Jul 2026
78	78	9 Jul 2026
79	79	19 Jun 2026
80	80	19 Jun 2026
82	82	26 May 2026
93	93	12 Feb 2026
94	94	11 Feb 2026
95	95	11 Feb 2026
101	101	11 Feb 2026
103	103	5 Feb 2026
104	104	5 Feb 2026
106	106	5 Feb 2026
108	108	5 Feb 2026
118	118	1 Dec 2025
125	125	1 Dec 2025
129	129	1 Dec 2025
132	132	1 Dec 2025
136	136	1 Dec 2025
137	137	1 Dec 2025
141	141	1 Dec 2025
154	154	1 Dec 2025
159	159	1 Dec 2025

JOrE20 (he/him)

5 Referrals

Card Number Validation in JavaScript in Bytes Play Hole