How to Switch Between Ruby Versions of Gem

The Ruby version I want to deal with is old and
Installing Gem individually.

when a Gem dependency is installed. Existing Gems may overlap.

Toggle while leaving both duplicated Gems I want to do it. Please teach me.

ruby-on-rails ruby

2022-09-30 21:55

1 Answers

for switching between installed versions of Gem gem(gem_name,*version_requirements)->bool.

For example, the latest version is usually called

require "csv"

pCSV::VERSION#=>"3.1.9"

If you specify a version before require,

require "rubygems"
gem "csv", "3.1.7"
require "csv"

pCSV::VERSION#=>"3.1.7"

will be

2022-09-30 21:55

If you have any answers or tips

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