Ruby on Rails Remove Blank elements from array

Sometimes, when you are working with arrays it is possible to have  empty elements,therefore you will need to clean it. In this section I will show you how to remove blank elements from a array using either Ruby on Rails or just Ruby.

Given the array called test
=> ["test", "", 1, 2, ""]

so, to remove the blank elements this is the syntax:

for Ruby on Rails:

test.reject &:blank? 

For Ruby:
  test.reject &:empty? 

How to install NetBeans On ubuntu

First of all, To Install NetBeans 8 in your computer go to [NetBeans Web Site] and download that version that you want in my case I am going to choose  the PHP version.

Secondly, Open your terminal and type the following command:

  

chmod +x /Downloads/netbeans-8.1-php-linux-x64.sh

Then, type this command in your terminal as well:

  

cd ~/Downloads && ./netbeans-8.1-php-linux-x64.sh

Finally, you should see a netbeans wizard installation.

How to updgrade Google Chrome in Ubuntu

If you want to upgrade your current chrome you must  open your terminal and write these commands:

  

$ sudo apt-get update

$ sudo apt-get install google-chrome-stable

It is important to note that, these commands either upgrade or  install Google Chrome on your computer.

Sublime | How to change selected tab color

If you want to change sublime  selected tab color  in order to achieve this:

You must follow  these steps:

1. Got to:  Preference->Browse Packages..
2. In the  packages windows , go to the folder User/
3. Create a new file called "Default.sublime-theme"
4. Open the file Default.sublime-theme and add the following code:
   

     
   [{"class": "tab_control", "attributes": ["selected", "file_medium_dark"],"tint_modifier": [91,123,33]}]
   
   

5. Save the changes and see the result immediately

Linux Command Shell : how to make Apache owner of folder

If  you need to make Apache owner of a specific folder, you can  achieve it , by executing the following  Linux command:

  
     chown -R apache /var/www/symfony_app/My_Folder/

This command will cause Apache is the owner of the folder and the contents in it.

The Purge: Election Year Official Trailer #1 (2016)

The Purge

The most usefull GIT Commands

These are the most common GIT commands

• Create an empty repository

  
      git init
   

• Staging your changes

  
     git add
   

• If you are your  root directory , I mean myapplication/ you can use the paramter -A to stage all changes in one execution.

  
     git add -A
   

• Putting you changes in your local repo

                  git commit

  
    git commit
   

• If you want to add a message in your commit you can use the parameter  -m

  
   git commit -m "login fixed"
   

• Switching between branches

  
   git checkout develop
   

• Creating a new branch

  
   git checkout -b MyNewBranch
   

• Adding new remote

  
   git remote add origin https://github.com/plataformatec/devise.git
   

• Saving your changes to the remote repo  

  
     git push origin develop
   

• Pull down new changes

  
     git pull origin develop