alexcalaca

Gem commands cheatsheet.md

gem list - List all gems installed

gem list -i <gem_name> - It shows if a gem exists or not. The output is true or false

gem list <gem_name> - It shows the gem version Example: gem list zlib

gem which - It shows the gem path

alexcalaca

Github cheatsheet-ac

git log : View commit history git log --stat : View commit history with more details

alexcalaca

require 'benchmark'

num1 = 42
num2 = 43

immediate_time = Benchmark.realtime do
  9_000_000.times do
    num1 + num2
  end
end