2 September 2008
- 20:0320:03, 2 September 2008 diff hist +186 Quine added J
- 14:5314:53, 2 September 2008 diff hist +74 Hostname added J
26 August 2008
- 22:2422:24, 26 August 2008 diff hist +44 Hello world/Graphical added J
- 17:5617:56, 26 August 2008 diff hist −27 Program termination →{{header|J}}: given Ian Osgood's clarification, J is no longer incorrect
- 16:4916:49, 26 August 2008 diff hist +72 Shell one-liner added J
- 16:4316:43, 26 August 2008 diff hist +525 Introspection →{{header|J}}: exegesis
- 15:4415:44, 26 August 2008 diff hist −5 Introspection →{{header|J}}: remove superfluous guard code
- 15:3615:36, 26 August 2008 diff hist +15 Introspection →{{header|J}}: originally forgot the "integer" part
- 14:0214:02, 26 August 2008 diff hist +15 Introspection extend extra credit
- 14:0114:01, 26 August 2008 diff hist +160 Introspection →{{header|J}}: added extra credit
- 13:4913:49, 26 August 2008 diff hist +78 Introspection added extra credit challenge
- 13:4713:47, 26 August 2008 diff hist +326 Introspection added J
19 August 2008
- 14:1914:19, 19 August 2008 diff hist +378 Forward difference →{{header|J}}: more examples
- 13:4213:42, 19 August 2008 diff hist +299 Forward difference →{{header|J}}: demonstrate limit (fixed-point) calculation
- 13:3513:35, 19 August 2008 diff hist −5 Forward difference →{{header|J}}: verb preferable to adverb (also shorter)
5 August 2008
- 20:1920:19, 5 August 2008 diff hist +15 Talk:Spiral matrix →aside: grading
- 20:0820:08, 5 August 2008 diff hist +242 User:DanBron →what i'll do
4 August 2008
- 23:2123:21, 4 August 2008 diff hist −1 User talk:Dirkt →= GesHi current
- 23:2023:20, 4 August 2008 diff hist +827 N User talk:Dirkt Adding syntax-highlighting for a new language
- 22:3522:35, 4 August 2008 diff hist +40 Zig-zag matrix →{{header|J}}: link to exposition (lest readers give up on J :)
- 17:5517:55, 4 August 2008 diff hist +329 Talk:Zig-zag matrix clarify
- 17:4517:45, 4 August 2008 diff hist +4,211 Talk:Zig-zag matrix more exposition
14 March 2008
- 19:3919:39, 14 March 2008 diff hist +3 Sort using a custom comparator →{{header|J}}: fixed bug. thanks to TBH for pointing it out.
- 19:2119:21, 14 March 2008 diff hist +14 Exponentiation operator →{{header|J}}: word fiddling
- 19:0619:06, 14 March 2008 diff hist +12 Exponentiation operator added TOC (don't know why it wasn't there by default)
13 March 2008
- 20:2820:28, 13 March 2008 diff hist +537 N User talk:TBH comment to TBH
- 19:5419:54, 13 March 2008 diff hist −16 Write float arrays to a text file J was correct already
- 19:5319:53, 13 March 2008 diff hist +24 Talk:Write float arrays to a text file No edit summary
- 19:5319:53, 13 March 2008 diff hist +127 Talk:Write float arrays to a text file response to TBH
- 19:5019:50, 13 March 2008 diff hist −16 Sort using a custom comparator J: changed sort order
- 19:4419:44, 13 March 2008 diff hist +6 Collections →{{header|J}}
- 19:4419:44, 13 March 2008 diff hist +462 Collections →{{header|J}}
- 19:3919:39, 13 March 2008 diff hist +107 Collections →{{header|J}}
- 19:3719:37, 13 March 2008 diff hist +2,086 Collections added J
- 19:0519:05, 13 March 2008 diff hist +314 Exceptions added J
- 18:5818:58, 13 March 2008 diff hist +82 Command-line arguments added J
- 18:4618:46, 13 March 2008 diff hist +526 Execute a system command added J
- 18:3318:33, 13 March 2008 diff hist 0 Exponentiation operator No edit summary
- 18:3218:32, 13 March 2008 diff hist +3 Exponentiation operator No edit summary
- 18:3018:30, 13 March 2008 diff hist +3,133 Exponentiation operator added J
- 17:0817:08, 13 March 2008 diff hist +326 Regular expressions added J
- 16:4416:44, 13 March 2008 diff hist +13 Retrieving an Element of an Array clarify J introduction
- 16:4116:41, 13 March 2008 diff hist +2,446 Literals/String added J
- 15:5615:56, 13 March 2008 diff hist +472 Write float arrays to a text file added J (and question re: Ada)
- 15:1815:18, 13 March 2008 diff hist +233 Assigning Values to an Array added J
- 14:5314:53, 13 March 2008 diff hist −595 Sort using a custom comparator →{{header|J}}