APL Style: Patterns/Anti-patterns

In the same fashion, I update my design, architecture, and implementation documents concurrently with implementing a prototype if I need to make modifications or add complexity on the fly. They aren't for me, now. They're for the junior engineers I'm going to hand the project over to who need to be able to flesh out parts of a much larger machine.

Finally, whether or not I can read or understand my code, which I generally can, I test it anyway. I test my code not because it is unreadable (it is generally very readable), but because despite my best efforts to minimize complexity, it is generally too complex to fit inside my head, and because whether or not it fits in my head I'm not the only person working on it.

https://www.youtube.com/watch?v=9xCJ3BCIudI

Lots of good commentary not in the slides.

And here is a way to download the video without Javascript. I have been meaning to try to rewrite this in k.

     #  Notes
     #  Works by brute force and has been reliable for years
     #  Was easily updated when YouTube made changes (rare)
     #  Zero dependencies except tr, sed and an https client
     #  Takes a YouTube URL on stdin  
     #  Example usage: 
     #  echo http://www.youtube.com/watch?v=9xCJ3BCIudI|ytd 22 file
     #  "ytd" is name of the script
     #  "22" is itag-no in this case large mp4 ("18" is smaller mp4) 
     #  "file" is optional filename, no extension required
     #  if no filename given video is saved as "1.mp4"
     #  UNIX-like: url-filter < file-containing-url|ytd 22 
     #  Caution when copying and pasting: line 2 needs to retain the 4 space indent
     #  N.B. Will not work with restricted videos; *this is not for downloading music or other commercial crap*; use youtube-download if thats what you are after
     #  N.B. Some videos may require a few tries, most will work on the first try; if get 403 try again
      
    #!/bin/sh 
    case $# in [123]);;*)exec echo usage: $0 itag-no \[file\];esac;a=$(exec sed 's/http:/https:/;s/m.youtube/www.youtube/;s/youtu.be./www.youtube.com\/watch?v=/;s/hooktube.com/youtube.com/;s/embed./watch?v=/;#etc.;s/?version.*//;s/;.*//'); n=0;while true;do b=$(curl $a|exec tr -cd '\12\40-\176'|exec sed 's/https%3A/\
        &/g;s/ *//;/   https%3A%2F%2F/!d;s/%3A/:/g;s/%2C/,/g;s/%2F/\//g;s/%3D/=/g; s/%3B/;/g;s/%3F/?/g;s/%26/\&/g;s/\\u0026/\&/g;s/%252C/,/g;s/%252F/\//g;s/%22/\"/g; s/%255B/[/g;s/%255D/]/g;'|exec sed '/itag='"$1"'/!d;/video.mp4/!d;/webm/d;/ytplayer/d;s/;+codecs.*//;s/&xtags.*//;/timedtext/d;s/&itag=..//2');test ${#b} = 0||break;test $n -le 9||exit;n=$((n+1));done;case $1 in 18|22)ext=mp4;esac;exec echo curl $3 -4o ${2-1}.$ext $b;

I have never seen a J job posting.

K programmers appear to be in demand, mostly around New York, Connecticut and London (and th occasional posting about a job in Singapore). Salaries are rumored to be low-to-mid six figures.

If you are willing to be much less APLish but still mostly hang around vectors, MATLAB jobs are plentiful but usually require specific experience.

I'd love to see how it handles web dev. It doesn't look like it'd be good at those types of things.

Oddly enough the DRY principle seems to discourage patterns, but in the end it seems that it's a matter of moderation.

It's interesting that the author of the article embraces the Write Only code philosophy. If there's an issue - just rewrite it.

Click the “three dots” icon in the top right and it should be obvious from there.

(The “accessibility view”, accessed in the same place, is also worth a try)

1000x this. My visual memory is better than my memory for sounds (words). That's why I'm compelled to APL and derivates, Haskell or even Coffeescript.. it's way easier to have a macro understanding of the code.