A Guide on Converting a Hash to a Struct in Ruby

Sep 7, 2023


In the world of Ruby programming, hashes and structs are two popular data structures. While both have their own advantages, there may be scenarios where you need to convert a hash to a struct. This guide will walk you through the process of converting a hash to a struct in Ruby.

Why Convert a Hash to a Struct?

There are several reasons why you may want to convert a hash to a struct. Firstly, structs provide a structured way to store and access data, making your code more organized and readable. Secondly, structs offer additional methods and functionality that can be useful in certain situations. By converting a hash to a struct, you can take advantage of these benefits and enhance your Ruby code.

Step 1: Creating a Struct

The first step in converting a hash to a struct is to define and create a struct in Ruby. Here's an example:

Person = Struct.new(:name, :age, :location)

In this example, we've defined a struct called "Person" with three attributes: name, age, and location. Feel free to modify the struct according to your specific needs.

Step 2: Converting the Hash

Once you have your struct defined, you can convert a hash into a struct object. Here's how you can do it:

person_hash = { name: 'John Doe', age: 30, location: 'Buffalo' } person = Person.new(*person_hash.values)

In this example, we have a hash called "person_hash" containing the information of a person. By using the "values" method, we extract the values from the hash and pass them as arguments to the struct's "new" method, creating a new struct object.

Step 3: Accessing Values in the Struct

Now that we have our hash converted to a struct, we can easily access the values using the struct's attributes. Here's how:

puts person.name # Output: John Doe puts person.age # Output: 30 puts person.location # Output: Buffalo

By calling the attribute on the struct object, we can retrieve the corresponding value. You can also modify the values of struct attributes as needed.


Converting a hash to a struct in Ruby can be a beneficial approach in certain scenarios. It allows you to leverage the advantages of structured data and provides additional functionality for your code. By following the steps outlined in this guide, you can easily convert a hash to a struct and enhance your Ruby programming experience.

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Shamone Shelton
This guide is incredibly helpful for anyone working with Ruby and wanting to convert a hash to a struct. The step-by-step process explained here is clear and easy to follow, making it a valuable resource. Structs offer advantages over hashes in certain scenarios, and this guide does a great job of highlighting those benefits. Thank you for sharing this informative article!
Nov 12, 2023