lovubuntu

Level 1  https://gist.github.com/anonymous/c9d83c2c1ecc7bfe501c
Level 9  https://gist.github.com/anonymous/3796e00c851b18011d39
Level 10  https://gist.github.com/anonymous/561aca26c35f8d060083
Level 11  https://gist.github.com/anonymous/23173aad302f28029e9f

lovubuntu

13-06-14
http://cjohnson.io/2014/tesla
http://fsharpforfunandprofit.com/posts/recipe-part2/
http://www.newscientist.com/article/dn25723-massive-ocean-discovered-towards-earths-core.html#.U5qS6NJpm-M
https://hacks.mozilla.org/2014/06/firefox-os-apps-run-on-android/

http://bost.ocks.org/mike/algorithms/

lovubuntu

To create a new file in Intellij:
  1. press ⌘+1 to get to project view
  2. Now move up or down to select the package
  3. Press Control+N to create a new file

lovubuntu

to get the first value of  ` set<E> someSet;`  its better to use `someSet.iterator.next()` than converting it to arraylist or array and then getting the first element

lovubuntu

There are lots of tcsh commands that help you navigate around when playing in the terminal.

Ctrl-a : back to begining of line
Ctrl-e: end of line
Ctrl-k: kills everything from the cursor to the end of line
Ctrl-b: moves cursor back (like the back arrow, but you don't have to move your hand as much)
Ctrl-f: moves the cursor forward
tab: completes the filename you are typing, very useful if you also set an environment 
variable in your ~username/.tcshrc file like this "set autolist" alone on a line. Try the tab with 
and without the environment variable. If you hate the beeping, put this environment variable 

lovubuntu

There's no history in the database itself, if you're using psql you can use "\s" to see your command history there.

You can get future queries or other types of operations into the log files by setting log_statement in the postgresql.conf file. What you probably want instead is log_min_duration_statement, which if you set it to 0 will log all queries and their durations in the logs. That can be helpful once your apps goes live, if you set that to a higher value you'll only see the long running queries which can be helpful for optimization (you can run EXPLAIN ANALYZE on the queries you find there to figure out why they're slow).

Another handy thing to know in this area is that if you run psql and tell it "\timing", it will show how long every statement after that takes. So if you have a sql file that loo

lovubuntu

Scope

Lexical Scope

Two forces that can cheat lexical scope:

1. Eval - By allowing the user to create/modify variables by passing in a string to eval
2. With - By creating a new variable in the whole new lexical scope (inside the containing function scope)

most of the optimizations the javascript engine does will be pointless if there is eval() or with. So it simply doesn't perform the optimizations at all #long live lexical scope

lovubuntu

install brew 
brew install zsh --> upgrade to latest version of zsh
sh -c "$(curl -fsSL https://raw.githubusercontent.com/robbyrussell/oh-my-zsh/master/tools/install.sh)"
install agnoster-paradox theme
install powerline fonts if missing
https://raw.githubusercontent.com/skwp/dotfiles/master/iTerm2/Solarized%20Dark.itermcolors

lovubuntu

# Adding user to sudo list
usermod -aG sudo username
  https://www.digitalocean.com/community/tutorials/how-to-create-a-sudo-user-on-ubuntu-quickstart

lovubuntu

wget -q -O — https://pkg.jenkins.io/debian/jenkins-ci.org.key | sudo apt-key add -
sudo sh -c ‘echo deb http://pkg.jenkins.io/debian-stable binary/ > /etc/apt/sources.list.d/jenkins.list’
sudo apt-get update
sudo apt-get install jenkins