Questions tagged [ruby]
Ruby is a multi-platform, open-source, dynamic, object-oriented, interpreted language created by Yukihiro Matsumoto (Matz) in 1993.
1,636
questions
1
vote
1answer
40 views
Code for appending to a certain index of an array
I have a collection which, after the code has ran, looks something like the following:
...
1
vote
1answer
31 views
Rails controller to handle offers and payments for rental housing
I've been adding stuff a bit "blindly" to my controller and currently everything is working as it should, but the controller is gotten very messy. I'm using the gem ...
0
votes
1answer
31 views
RSpec: Compound Expectations
It's an exercise from a RSpec-course, which I'm currently doing.
Task:
Create a compound expectation, which asserts the string sportscar starts with the substring "sports" and ends with the ...
0
votes
1answer
35 views
User registration API
Would love some feedback on this simple API implementation with Ruby on Rails. Have I used proper naming conventions, readable/manageable code, optimal approaches, etc? As I'm still learning Ruby on ...
1
vote
0answers
31 views
4
votes
2answers
49 views
Jekyll plugin which bundles files into a zip archive
I am not a Ruby developer but cold-reading existing Jekyll plugins I implemented one to bundle files in a zip archive and open sourced it on GitHub.
What do I need to fix to make it look more Ruby-...
3
votes
1answer
66 views
Migration in a bioinformatics application that changes a column name and explains the rationale
This very short piece of code is a migration in which a column name is changed to be more descriptive. It is part of a larger bioinformatics application written in RoR that parses the output of ...
1
vote
2answers
35 views
Refactoring Ruby recharge REST API wrapper by using class variables
I am trying to create an API wrapper for recharge (A Shopify subscription service), I am using the HTTParty gem
...
0
votes
1answer
44 views
Library Program in Ruby with Class
I have been learning Ruby for 2 weeks. Today my bootcamp teacher taught Ruby Class and gave me homework. I coded simple library program. But I think the code is smelling bad. How can do better the ...
2
votes
2answers
60 views
Number guessing game in Ruby
I am a newbie in Ruby. I want to learn Ruby and I want to learn clear code in Ruby. I coded a number guessing game but my code is smelling bad. How I can do better code?
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-2
votes
2answers
43 views
How can I make BalanceService PORO I wrote better of any code smell? [closed]
I wrote this method which I think is not effective as it doesn't respond to the missing method when I use the PORO Class.
BalanceService
...
1
vote
2answers
50 views
Querying and rendering an HTML table of ISP performance statistics
I have multiples measurements and I want to render it into tables like this
Measurements
Operator
browsings
FTP DL
FTP UL
Location
Event
Date
Operator
avg
min
max
avg
min
max
avg
min
max
Verizon
...
0
votes
1answer
73 views
3
votes
1answer
103 views
Reshape hash of hashes into array of modified hashes without using nested each?
My goal is to write more idiomatic ruby when working with nested data structures. More specifically, I need to break my habit of looping through everything with ...
2
votes
1answer
55 views
Singleton in Ruby without using Singleton module or class variable
When I need a singleton class in my Ruby code (for example, single logger for multiple classes) I usually use code like this:
...
1
vote
1answer
57 views
How to reduce code in hash created using Database and Params in rails
I have wrote following solution for one answer but I want to refactor to make it more simple and readable.
I am receiving params
...
3
votes
2answers
105 views
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 ...
1
vote
3answers
108 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 ...
0
votes
2answers
117 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 ...
0
votes
3answers
52 views
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 ...
1
vote
0answers
61 views
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
}
]
...
2
votes
1answer
94 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....
4
votes
1answer
64 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.
...
1
vote
1answer
54 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 ...
1
vote
1answer
60 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 ...
2
votes
1answer
108 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 +...
1
vote
1answer
51 views
Ruby: Database Authentication Module
I have created a module that validates the credentials against different databases.
...
3
votes
3answers
190 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?
...
1
vote
2answers
126 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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-2
votes
1answer
37 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
...
1
vote
1answer
129 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 ...
3
votes
2answers
169 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 ...
2
votes
2answers
113 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, ...
1
vote
1answer
41 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 ...
1
vote
2answers
175 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 ...
-1
votes
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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1
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0answers
59 views
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 ...
4
votes
3answers
78 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 ...
1
vote
0answers
42 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:
...
1
vote
1answer
322 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 ...
1
vote
2answers
91 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 <...
1
vote
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:
...
4
votes
1answer
127 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 ...
3
votes
1answer
60 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 ...
1
vote
1answer
150 views
1
vote
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 ...
5
votes
2answers
115 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 ...
1
vote
2answers
71 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 ...
3
votes
1answer
124 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'...
1
vote
1answer
144 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 ...