Is there a "do ... while" loop in Ruby?

Is there a "do ... while" loop in Ruby?

You're not alone! Many developers hope to find a "do ... while" loop in Ruby that can simplify their code. This loop structure allows you to execute a block of code at least once and then continue as long as a certain condition is met. 🔄

However, 😔 there is no built-in "do ... while" loop in Ruby. But don't worry, we've got you covered with some alternative solutions! 💪

The Ruby way

Instead of using a "do ... while" loop, you can achieve the desired behavior using other constructs that Ruby offers. Let's explore two common approaches:

1. Loop and break

people = []

loop do
  info = gets.chomp
  break if info.empty?
  people << Person.new(info)
end

In this approach, we use the loop keyword to create an infinite loop. Inside the loop, we read user input and conditionally break out of the loop if the input is empty. Otherwise, we add a new instance of the Person class to the people array.

2. Until loop

people = []

until (info = gets.chomp).empty?
  people << Person.new(info)
end

Here, we leverage the until loop, which continues executing the block of code until a certain condition becomes true. In this case, we assign the input value to info and continue adding new Person objects to the people array until the input is empty.

Which approach is better?

Both solutions achieve the same result, and the choice between them depends on personal preference and coding style. The loop and break approach can be useful when you need more flexibility within the loop, while the until loop offers a more concise solution.

Ultimately, it's important to choose a solution that fits best within the context of your application and improves readability. 📖

Got a better way?

If you know of any other clever ways to accomplish this task or have suggestions to improve the provided solutions, we'd love to hear from you! Let's learn from each other and help make Ruby coding more efficient and enjoyable for everyone. 😊

Leave a comment below and share your thoughts, alternative solutions, or any concerns you may have.

Happy coding! 💻✨