How do I use blocks in Ruby?

How do I use blocks in Ruby?

In Ruby, blocks are chunks of code that can accept input and be executed. You can define a block using either braces {} or the do...end syntax.

Can you give me an example of a block in Ruby?

Sure! Here's a simple example:

[1, 2, 3].each do |number|
  puts number * 2
end

This will print each number in the array multiplied by 2.

What is the difference between a block and a method?

A block is an anonymous piece of code that can be passed to methods, while a method is a defined function that can be called by name.

Can I pass multiple arguments to a block?

Yes, you can pass multiple arguments to a block by specifying them in the block parameters, like this:

[1, 2, 3].each_with_index do |number, index|
  puts "Index: #{index}, Number: #{number}"
end