bahelms

git branch --merged | grep -Ev "(^\*|master|dev)" | xargs git branch -d
git remote prune origin

bahelms

# The grep regex determines what you actually remove

# Remove old containers
docker ps -a | grep "\(weeks\|hours\) ago" | awk '{print $1}' | xargs docker rm

# Remove images without tags
docker images | grep "^<none>" | awk '{print $3}' | xargs docker rmi

bahelms

sudo kextunload -b com.apple.iokit.BroadcomBluetoothHostControllerUSBTransport
sudo kextload -b com.apple.iokit.BroadcomBluetoothHostControllerUSBTransport

bahelms

# Replace the variable 'size' with the desired string length 
o = [('a'..'z'), ('A'..'Z'), (0..9)].map { |i| i.to_a }.flatten; string = (0...size).map { o[rand(o.length)] }.join

bahelms

# Re-sync clock on ubuntu

sudo /etc/init.d/ntp stop
sudo ntpdate ntp.ubuntu.com
sudo apt-get install ntp

bahelms

// Reflection
typeof 100 => Number
object instanceof Object => true/false
Array.isArray(array_var) => true/false

// Detecting object properties
"property" in object => true/false               // checks own and prototype
object.hasOwnProperty("property") => true/false
Object.keys(object)                              // returns own properties only
for (var property in object) {}                  // loops over enumerable own and prototype properties

bahelms

In your .bashrc/.bash_profile paste the following (add any other commands to bundle_commands):

bundle_commands="sidekiq spring rake spec rspec cap rails rackup guard middleman"
function run_bundler_cmd () {
    if [ -r ./Gemfile ]; then
        bundle exec $@
    else
        $@
    fi
}

bahelms

Remove existing files from repo:
find . -name .DS_Store -print0 | xargs -0 git rm --ignore-unmatch

Add .DS_Store to .gitignore

bahelms

jQuery ->
  checkLocalStorage = -> 
    lastTab = localStorage.getItem("name_of_saved_item")
    if lastTab
      # Set active tab to previous tab from before page reload
      $("a[href='#{lastTab}']").tab("show")
      localStorage.removeItem("name_of_saved_item")
      
  # Execute every time page is loaded
  checkLocalStorage()

bahelms

require "csv"

def csv_headers
  ["Your", "Headers", "Here"]
end

files = Dir["file_names_*.csv"].sort_by { |f| "if you want to sort the files" }
file_contents = files.map { |f| CSV.read(f) }

csv_string = CSV.generate do |csv|