My initial thought is "don't use a while loop". If all you're doing is waiting for the file to be OK, what does this mean and how do you check for it?
On Sat, Jan 2, 2021 at 2:38 PM cilz <[email protected]> wrote: > Hello Guys, > > This is my first post on this forum and I take the opportunity of this > question to wish you the best for this new year 2021. > > As a means of learning J I'm trying to implement my "standard" > application with it. This app reads a text file and feed a database > which I query to get various metrics. I also want to have a some data > displayed in a terminal with an automatic update when the source file is > modified or when the day changes. Simple, isn't it? > > In order to achieve this I thought to use a "while" loop with a kind of > "wait/sleep" function like this foreign verb "6!:3". But unfortunately > the result is not the one I expected as it looks like the display is > locked until the loops ends. > > I have a question on Stackoverflow here > > https://stackoverflow.com/questions/65532824/j-programming-how-to-wait-fo-x-seconds-before-executing-the-next-verb > but I'm still looking for a solution. > > Hence here is my question: is there any way to have a "while" loop which > doesn't hold the entire verb ? > > here is my verb in pseudo code: > > agenda : 3 : 0 > > echo (something) > > while. (test for file ok) > > do. (wait for 20s) > > end. > > (update data base) > > agenda'' > > ) > > Any idea? > > Regards > > Eric > > > ---------------------------------------------------------------------- > For information about J forums see http://www.jsoftware.com/forums.htm > -- Devon McCormick, CFA Quantitative Consultant ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm
