Questions tagged [ruby]

Ruby is a multi-platform, open-source, dynamic, object-oriented, interpreted language created by Yukihiro Matsumoto (Matz) in 1993.

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18 views

How could I simplify this type of data-classes-bindings in Ruby? [closed]

I have a library or gem that's a binding for a another library written in a native compiled language. In a gem there're many classes like this: ...
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Locking class and its method

I'm ruby developer, and I faced some issue in my app, I thought that is more generic issue so I wrote my first gem. I know that probably there are dozens of things which I can made better. So could ...
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Finding minimum steps required to traverse from source to terminal

Hello everyone this is my first post here so please do critique my post if there's anything. I have made a program intended to pass a programming challenge on open.kattis.com, here. It should do as ...
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77 views

Advent of Code 2020, Day 10 in Ruby

I'm an amateur programmer making a career change into web development. I've found Advent of Code challenges are great way to sharpen my skills. I've cleaned up this solution for Day 10, 2020 as much ...
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80 views

Insertion Sort Implemented in Ruby

I'm a new programmer and I'm periodically going into the Intro To Algorithms CLRS textbook and trying to translate pseudocode into Ruby for skill practice. This is my implementation/translation of ...
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Ruby: possible Poker holds for a hand of length n

Hello everyone and thanks in advance for taking the time to read my post!! In the process of learning Ruby, I'm writing a video poker machine that analyzes hands represented by arrays of Cards, like ...
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Addition/subtraction of Ruby arrays

Let's say I have this array. items = [ { amount: 100, add: true }, { amount: 50, add: false }, { amount: 100, add: true } ] ...
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1answer
81 views

How can I make this CSV Importer code better of any code smell?

I wrote this method a few years ago in a Ruby on Rails project, which I think I am not proud of. How can I make this code better to show in-depth professionalism in Ruby? lib/merchant/web_csv_importer....
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1answer
53 views

Generating product variants in Ruby

Based on the sample variants, I need to get all combinations of all variants. In the example I have 3x3x2=18 variants. ...
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1answer
49 views

Ruby Symbol Table implementation using Binary Search

I'm currently going over Robert Sedgewick's Algorithms book. I implemented a Symbol Table using two parallel array one for keys and one for values. The keys array is ordered and the Symbol Table uses ...
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1answer
54 views

What changes can I make to simply this function that groups parameter key value pairs

I am writing a function that can be used in a ruby script that will match the parameter and values together so the script can use them in an intelligent way. The idea is if you were to run a script ...
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1answer
72 views

Idiomatic Ruby if/else in a Sinatra route

Apologies if this question doesn't fit the format here, seemed more appropriate here than SO due to the more nebulous nature of the question. Think mini tinyURL clone: POST to service to save the url +...
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1answer
51 views

Ruby: Database Authentication Module

I have created a module that validates the credentials against different databases. ...
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3answers
176 views

Better way to count the number of occurrences of a maximum number in the array in Ruby

I am trying to write a program to get the count of the maximum number in an array of integers. The below code is what I have written. Is there any better way to write this code in Ruby? ...
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105 views

Ruby Hangman Game

I'm still new to coding and self-taught. If anyone could take a look at my code for my Ruby Hangman game and give any tips or advice whatsoever, it would be greatly appreciated. I'm trying to improve! ...
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1answer
36 views

Getting account status from a client [closed]

I have the following Ruby method. def get_status(creds) client = create_client(creds) status = client.account_status client.close_session status end ...
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1answer
100 views

Priority Queue implementation for top k frequent elements leetcode in Ruby

While working on the following leetcode problem: https://leetcode.com/problems/top-k-frequent-elements/ I used a Priority Queu implementation in Ruby. I have learned how to implement a Priority Queu ...
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2answers
127 views

Reverse the words, move the vowels and downcase everything

I'm brand new to Ruby. The function takes in a string of any number of words, and reverses the order of the words. Also, for each word, it takes the vowels and moves it to the end of the word. It also ...
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87 views

Ruby Mastermind game project with AI

I'm self-learning and pretty new to coding and created a Mastermind game in Ruby. Any general feedback or advice whatsoever would be greatly appreciated. The game is completely functional right now, ...
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1answer
40 views

Should methods be inside classes? in Ruby

I have coded more in Python but I am learning Ruby now. So I am trying to write a solution to create a family_tree and add and get relationships. The code below is ...
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69 views

Return nil after loop and also in unless block in Ruby

I have a working code as below. Is there any better way to return nil after the each loop and ...
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1answer
70 views

Correct way to define variables and methods in Ruby [closed]

I am trying to write a Person class in Ruby which has some methods and properties. The below is how I have implemented it now. ...
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Random Word Chain Finder in Ruby

Wrote this program out of curiosity after initially solving the Word Chains puzzle. Explanation of puzzle in link below. http://rubyquiz.com/quiz44.html NWordChains#find_word_chains will take in a ...
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3answers
60 views

App to seed DB, generate CSVs, and export individually or in complex zip files Rails 5

I have an app whose sole purpose is to seed data files and add the data to different CSVs which are zipped and exported by the user. My application controller is filled with lines that all look like ...
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36 views

Custom include? method for a substring

Task: Write a function which returns true if a given substring is found within a given string. If the substring isn't found, then return false. My implementation: ...
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1answer
179 views

Ruby Tic-Tac-Toe two-player

As a preface, I'm very new to coding (self-learning) so if you notice any bad habits please let me know, it would be GREATLY appreciated. I'm self-learning Ruby so I don't really have a frame of ...
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2answers
86 views

Parser for file made up of sections

I'm parsing a file made up of various sections. I have a current_section variable that tracks which portion of the file I'm currently processing and the following <...
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1answer
26 views

Write your implementation of Ruby's String#count method

The task is to write a simplified version of Ruby's String#count method oneself. Simplified because it doesn't have to have the negation and sequence parts of the original. Here my solution: ...
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1answer
102 views

Solution to the n-queens puzzle in Ruby

I started studying programming in January of this year and found a free online course that teaches Ruby. Below is my solution to the Eight Queens problem. I wanted my solution to be able to return any ...
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1answer
54 views

Finding the lowest perfect square that can be added to a number to make another perfect square

The code below returns the smallest perfect square that can be added to a number n to result in a perfect square. It works perfectly fine but I need it to run ...
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1answer
101 views

Caesar Cipher, done in Ruby

It's an assignment from the Odin Project. Here's my implementation: ...
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1answer
41 views

Ruby script implementation

I created a script to automate the task of uploading a CSV file to Box. I have a couple of files a Box client and a MySQL client. I create an instance of both on the function.rb file which is the one ...
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2answers
70 views

Ruby function to capitalize all words in a string

The task is to write a function, which capitalize the first letter of all words in a string. For this we'll class a word as any characters separated by a blank. Because the standard ...
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2answers
59 views

API Get Request to pull data from an online database

This code gets detailed information about a particular game from an online database using an API Get request. The question I have doesn't pertain to the request but is more about the code itself. The ...
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1answer
110 views

Ruby simple interactive interpreter

This is a solution to this problem: https://www.codewars.com/kata/53005a7b26d12be55c000243/train/ruby The task is to make a simple interpreter that will take expressions and calculate the results. I'...
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1answer
63 views

Ruby Exercise: Implement your own “#group_by” method

Task: "Implement a method 'gruppiere', in a way that it can be invoked on all enumerable objects (Enumerable). The method receives a block and returns a hash. The items of the enumerable a grouped ...
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1answer
62 views

Ruby - Sending commands to multiple servers using Net::SSH

The idea At my work, I'm tasked with retrieving logs for a list of online orders from a total of 12 servers. To do this, I SSH into them (with a jump host in between) one by one, run the script for ...
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45 views

Profitwell API wrapper build as Ruby gem

I've created my first gem in Profitwell API wrapper https://github.com/eebasadre20/profitwell. I love to get some feedback, comment, or suggestion on the code structure, method implementations, and so ...
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1answer
83 views

Linked List implementation in Ruby

I was working on Leet code design a Linked List problem. My solution with a @tail pointer, althought it added complexity it made adding to tail O(1), also having a ...
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41 views

mergeSort implementation in Ruby

I'm currently going over Robert Sedgewick Algorithms book and I'm trying to recreate his Java implementations in Ruby. I would like to know If I'm following best practices. I try to use clean code ...
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1answer
68 views

Presenter pattern implementation

I've recently discovered patterns and decided to implement Presenter pattern inside a pedagogical project. I spent few days playing around with different implementations, reading some Gem's source ...
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339 views

Building google maps inside a ruby on rails application

This is a basic map that was built: To render it, you would put this in the .html.slim files .acme-map-container-4 data=map_identifier(resource: @warehouse.id) ...
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49 views

Encapsulating Logic to Reuse in Various Contexts

I'm experimenting with ways to reuse code throughout a Rails web app. I'm interested in feedback concerning one such approach! Context A user's request may be scoped to a physical location so that ...
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1answer
559 views

Rails 6: Attaching Devise current_user.id to form submissions

In my Ruby on Rails 6 app: I have a User class built with Devise, and I scaffolded a List class where each List should belong_to a User. I want Lists created through my app to be automatically ...
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1answer
55 views

FizzBuzz encapsulation In Ruby (identifying and separating concerns)

I'm working on an article about encapsulation in OOP, and I'm using the FizzBuzz problem to demonstrate what I think is so great about it. I'm hoping to share this with developers that might also be ...
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1answer
77 views

Case of Cyclomatic Complexity

I'm trying to recreate the method inject (Works like Reduce) from ruby Enumerable Module. Using Rubocop (A Linter) I got the error: ...
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1answer
96 views

Ruby parallel assignment

I recently wrote the following code: ...
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1answer
43 views

Return values from array A in the order they are in array B

So my question is the cleanest way to do #product_panels_for below: ...
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1answer
49 views

custom hash from group_by hash

I am trying to create a custom hash from a table. User has many transactions. A transaction has a ...
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0answers
42 views

Advent of Code Day 3, how to optimize my ruby solution?

I have solved the 3rd day puzzle of Advent of Code but wanted some feedback on my solution. The puzzle here wants to find where two jumbled wires intersect closest to the origin. Puzzle input is ...

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