ruby version check

1. What is current version of Ruby?
2. How can you tell a ruby?
3. How do I know if Ruby Gem is installed?
4. How do I check Ruby on Rails version?
5. Is Ruby on Rails dying?
6. How do I switch between versions of Ruby?
7. How big is a 1 carat ruby?
8. How much is a 1 carat ruby worth?
9. Are rubies rarer than diamonds?
10. How do I know if Ruby is installed on Windows?
11. Where does Ruby install gems?
12. How do I uninstall a ruby gem?

What is current version of Ruby?

The default current version of Ruby will remain as 2.6.

How can you tell a ruby?

Real rubies glow with a deep, vivid, almost "stoplight" red. Fake gems are often dull: they are "light, but not bright." If the gem is more of a dark red, then it may be garnet instead of a ruby. If it is a real ruby, however, know that darker stones are usually worth more than lighter stones.

How do I know if Ruby Gem is installed?

Try gem list to get the list of gems that are installed. To test for a particular gem, you can use -i with a regex: gem list -i "^gem_name$" . (Credit to Timo in the comments for this technique.) If you can't find data_mapper, it may be that the gem name is different from what you expect.

How do I check Ruby on Rails version?

Step 1: Check Ruby Version

Open the command prompt and type ruby -v. If Ruby responds, and if it shows a version number at or above 2.2. 2, then type gem --version. If you don't get an error, skip Install Ruby step.

Is Ruby on Rails dying?

Rails is not dead and even shows no signs of dying. You can just check out the list of popular tech startups built using RoR here. We have gathered reasons why Ruby on Rails is alive and shows no signs of serious illness, or give it up as a hopeless technology.

How do I switch between versions of Ruby?

If you choose rbenv :

1. Follow the all the installation and setup instructions.
2. Install ruby-build.
3. Run rbenv install x.x.x where x.x.x is the version (use rbenv install --list to see which ones are available.
4. Run rbenv global x.x.x to change your global Ruby version.

How big is a 1 carat ruby?

Gem Details

How much is a 1 carat ruby worth?

One carat ruby prices can range from US$10 to US$12,000

The method I used to determine the value is by first categorizing the stone based on the 4Cs + OT method.

Are rubies rarer than diamonds?

Diamonds are one of the most valuable precious stones around, but not because diamonds are especially rare. In fact, high-quality emeralds, rubies, and sapphires are all rarer in nature than diamonds.

How do I know if Ruby is installed on Windows?

To check if Ruby installed correctly, open the Run dialog box ( Windows Key + R ) and type powershell . In the PowerShell window type in the command ruby -v . If everything went well you should see a message like ruby 1.9.

Where does Ruby install gems?

When you use the --user-install option, RubyGems will install the gems to a directory inside your home directory, something like ~/. gem/ruby/1.9. 1 . The commands provided by the gems you installed will end up in ~/.

How do I uninstall a ruby gem?

How to Uninstall a Ruby Gem

1. Open a terminal. In Windows, you can do this by clicking "Start" and "Run." When the "Run" dialog appears, type "cmd." On Mac OS X, you can simply click the Spotlight button and type "Terminal."
2. Type the following command to uninstall a gem: gem uninstall GEMNAME. ...
3. Tip.