Ruby and Gem


A tool (library) that can be used in development using Ruby. However, many gems are made up of the functions of other gems, and often cannot be used alone.


So the turn is this ** "bundler" ** It will install all the necessary gems related to the gem you want. Super convenient. By the way, bundler is also one of the Gem.


A file that contains information that is automatically generated when bundle install is performed with bundler. You can see which gems were installed together in which version for one gem.

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