How do I use the Ruby Async gem for concurrent programming?

How do I use the Ruby Async gem for concurrent programming?

The Ruby Async gem allows you to write concurrent code using fibers. You can start by installing the gem with gem install async.

Can you show me a simple example of using it?

Sure! Here's a basic example:

require 'async'

Async do
  puts 'Starting task...'
  sleep 1
  puts 'Task completed!'
end

What if I want to run multiple tasks at the same time?

You can use Async blocks to run multiple tasks concurrently. Here's an example:

Async do
  3.times do |i|
    Async do
      sleep rand(1..3)
      puts "Task #{i} completed!"
    end
  end
end

Are there any best practices for using the Async gem?

Yes! It's best to keep your tasks lightweight and avoid blocking operations. Use non-blocking I/O whenever possible.