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WSL (Windows Subsystem Linux) Folder in Windows

From the Windows side

Use standard Windows networking paths to view your Linux folders using Windows Explorer. In the search box, enter:

  \\wsl$

That will bring you to the root directory of your Linux install. To get to your home directory, try something like this, with your version of Linux.

  \\wsl$\Ubuntu-18.04\home\

From the Linux side

From Windows terminal or your Linux distribution such as Ubuntu, enter:

  explorer.exe .

This will open up Windows Explorer in the folder where you were in Linux.

Use Visual Studio Code if you want an editor that works wonderfully with WSL. Within VSCode, click on the icon on the bottom left corner to connect to your Linux install.

references

https://docs.microsoft.com/en-us/windows/wsl/install-win10

Windows Subsystem Linux runs under Insider Build for Windows 10.

Ruby Structs Example

Structs are a built-in Ruby class that can act like a custom class. They are great for testing, debugging and playing.

LunchOrder = Struct.new(:name, :drink, :food)
event_order = []
event_order << LunchOrder.new('hakeem', 'water', 'Mixed Veggie')
event_order << LunchOrder.new('selena', 'mango lasse', 'Bangkok Dumplings')
event_order << LunchOrder.new('jingyan', 'tea', 'Yellow Curry')
drinks = event_order.map(&:drink)

Structs are compared by value equality rather than referential equality. If two struct objects have the same value they are equal. Classes with the same values are not equal.

references

https://www.leighhalliday.com/ruby-struct

https://blog.bigbinary.com/2018/01/16/ruby-2-5-allows-creating-structs-with-keyword-arguments.html

Keyword parameters in structs were introduced in Ruby 2.5

How to Split Long Lines in Rspec

It can be challenging to know where to break a long line in ruby. Especially when writing tests in rspec.

RSpec.describe PostHelper, :type => :helper do
  describe '#markdown' do
    it 'returns code blocks' do
      blog_text = "```ruby\nHello, World!\n```"
      expect(helper.markdown(blog_text)).to eq("<pre><code class=\"ruby\">Hello, World!\n</code></pre>\n")
    end
  end
end

One technique is to find the method call, .to in the example above, and break it there.

RSpec.describe PostHelper, :type => :helper do
  describe '#markdown' do
    it 'returns code blocks' do
      blog_text = "```ruby\nHello, World!\n```"
      expect(helper.markdown(blog_text)).
        to eq("<pre><code class=\"ruby\">Hello, World!\n</code></pre>\n")
    end
  end
end

Rubocop can help improve your ruby style. Rubocop is available as an extension in Visual Studio code.