Does anyone know what language this could be?
([][(![]+[])[!+[]+!+[]+!+[]]+(!![]+[][[]+[])[+[]]+([![]]+[][[]])
[+!+[]+[+[]]]+(![]+[])[!+[]+!+[]]+(!!)[+[]]+(!![]+[])[!+[]+!+[]+!+[]]+(!![]+[])[+!+[]]])[+!+[]+[+[]]]+(!![]+[])[+!+[]]+(!![]+[])...
it is javascript, see here http://forum.lessthandot.com/viewtopic.php?f=44&t=13503
put this in a file and run it
another example