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Open JDK 8 installation

sudo apt-get purge openjdk*
sudo add-apt-repository ppa:webupd8team/java
sudo apt-get update
sudo apt-get install oracle-java8-installer
sudo apt-get install oracle-java8-set-default
java -version

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----- BEGIN LICENSE ----- 
Andrew Weber 
Single User License 
EA7E-855605 
813A03DD 5E4AD9E6 6C0EEB94 BC99798F 
942194A6 02396E98 E62C9979 4BB979FE 
91424C9D A45400BF F6747D88 2FB88078 
90F5CC94 1CDC92DC 8457107A F151657B 
1D22E383 A997F016 42397640 33F41CFC 
E1D0AE85 A0BBD039 0E9C8D55 E1B89D5D 

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The introduction to Reactive Programming you've been missing

(by @andrestaltz)

---

This tutorial as a series of videos

If you prefer to watch video tutorials with live-coding, then check out this series I recorded with the same contents as in this article: Egghead.io - Introduction to Reactive Programming.

---

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Reference

1. https://speakerdeck.com/willroth/50-laravel-tricks-in-50-minutes
2. https://www.reddit.com/r/laravel/comments/3to60i/50_laravel_tricks/

ToC

A. Eloquent

• 1. Automatic Model Validation

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# Ask for the user password
# Script only works if sudo caches the password for a few minutes
sudo true

# Install kernel extra's to enable docker aufs support
# sudo apt-get -y install linux-image-extra-$(uname -r)

# Add Docker PPA and install latest version
# sudo apt-key adv --keyserver hkp://keyserver.ubuntu.com:80 --recv-keys 36A1D7869245C8950F966E92D8576A8BA88D21E9
# sudo sh -c "echo deb https://get.docker.io/ubuntu docker main > /etc/apt/sources.list.d/docker.list"

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HTTP status code symbols for Rails

Thanks to Cody Fauser for this list of HTTP responce codes and their Ruby on Rails symbol mappings.

Status Code Symbol
1xx Informational
100 :continue
101 :switching_protocols
102 :processing

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{
  "nodes": [
    {"id": "Myriel", "group": 1},
    {"id": "Napoleon", "group": 1},
    {"id": "Mlle.Baptistine", "group": 1},
    {"id": "Mme.Magloire", "group": 1},
    {"id": "CountessdeLo", "group": 1},
    {"id": "Geborand", "group": 1},
    {"id": "Champtercier", "group": 1},
    {"id": "Cravatte", "group": 1},

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1. Rename your local branch.
  If you are on the branch you want to rename:  git branch -m new-name
  or If you are on a different branch: git branch -m old-name new-name

2. Delete the old-name remote branch and push the new-name local branch.
  git push origin :old-name new-name

3. Reset the upstream branch for the new-name local branch.
  Switch to the branch and then: git push origin -u new-name

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## python 3.7 install
-> sudo apt update
-> sudo apt install build-essential zlib1g-dev libncurses5-dev libgdbm-dev libnss3-dev libssl-dev libreadline-dev libffi-dev wget
-> sudo apt install software-properties-common
-> sudo add-apt-repository ppa:deadsnakes/ppa
-> sudo apt update
-> sudo apt install python3.7
-> python3.7 --version

## pip3 install

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Then the code you write should have the following qualities. Code should be

• Transparent The consequences of change should be obvious in the code that is changing and in distant code that relies upon it
• Reasonable The cost of any change should be proportional to the benefits the change achieves
• Usable Existing code should be usable in new and unexpected contexts
• Exemplary The code itself should encourage those who change it to perpetuate these qualities

Code that is Transparent, Reasonable, Usable, and Exemplary (TRUE) not only meets today’s needs but can also be changed to meet the needs of the future. The first step in creating code that is TRUE is to ensure that each class has a single, well-defined responsibility.