All Questions
764
questions
2
votes
1
answer
64
views
Ruby setter-methods: Is the equal-character (=) a convention or functionality?
Taken this class as a example:
class House
def initialize(color, size)
@color = color
@size = size
end
def color
@color
end
# Is the = part of the syntax or a convention?
def ...
- 5,468
0
votes
0
answers
47
views
How to extend an object in Ruby? [duplicate]
Say, I have an object that replies to .hello method. Now, I want to create another object that will reply to both hello (and all other methods of the original object) and bye methods. Something like ...
- 104k
0
votes
1
answer
67
views
Ruby OOP classes interaction: Which way to update instance variables?
I have 2 classes: Game and Player. This is a Tic-tac-toe game.
class Game
attr_accessor :player_1, :player_2, :numbers, :board
def initialize(player_1, player_2)
@player_1 = player_1
...
- 287
2
votes
1
answer
86
views
Ruby class constructor using `()` rather than `.new()`
Please do not ask me "why do you want to do this?" I'm just exploring the nooks and crannies of Ruby, with no specific goals in mind.
Some Ruby classes can be instantiated with just ...
- 1,980
0
votes
0
answers
42
views
Hangman Ruby Game - Why Does the Winning Message Delay and Saved Game Prompt Repeat?
I am developing a Hangman game as part of the Odin Project curriculum (https://www.theodinproject.com/lessons/ruby-hangman).
The game utilizes a dictionary file (https://raw.githubusercontent.com/...
- 11
-2
votes
1
answer
41
views
Some methods in my Ruby class appear to be private by default? Even though they are regular methods within the class [closed]
class ProcessTrip < MetroCardClassMethods
attr_accessor :travel_history, :station, :destination
def initialize
end
def update_balace_aumount(balance_details,trip_to,trip_complete)
...
- 49
0
votes
2
answers
49
views
Accessing instance method of a different class with current object
From the book Practical Object-Oriented Design in Ruby, by Sandi Metz:
class Gear
attr_reader :chainring, :cog, :rim, :tire
def initialize(chainring, cog, rim, tire)
@chainring = chainring
@cog =...
- 1,202
0
votes
2
answers
335
views
coding challenge solution with a hidden bug
Recently I took a coding challenge on turing. The question was :
You will be given a string list(ops) as input.
If its an integer you have to keep a record of it
If it's a character 'C', you have to ...
- 23
1
vote
1
answer
46
views
Handling non created object in ruby
I have created a class using the singleton design pattern. The main objective of the class is to create an email id only when the email is valid. If the email is not valid it will not create an object....
- 105
3
votes
1
answer
143
views
Ruby: Is it ok for a method to return an object of different types?
Is it a good idea to return an object whose type changes depending on the method’s inner logic?
E.g.:
class Error
attr_reader :details
def initialize(details)
@details = details
end
end
...
- 126
0
votes
0
answers
50
views
If my ManageMonster Class have bloated parser / input checker should I move it to a new class MngMonsterParser? (OOP design question)
Say for example I have a microservice where I need a class where I can manage a monster from another service, like level it up, update its status (sick, hungry and etc) and take a picture with it(save ...
- 45
1
vote
2
answers
42
views
How do I keep track of automatically instanced unassigned objects in basic Ruby?
I am trying to build a mastermind game, and I am hoping to have my code instance its own objects containing information about the place and color of the step in the passcode. This is so I can vary the ...
0
votes
1
answer
75
views
Rails Job to Merge Records With Similar Phone Numbers
I have a Postgres database with tens of thousands of User records, each having a phone number. However, there are many duplicate Users with the same phone number, but one record might be missing the ...
- 13
2
votes
1
answer
41
views
Nil class for objects in a collision detection test
I ran into a problem while testing for a collision detection system. For the sake of visualization, you can think of the overall structure of the code as Main Class =>Class(ship, shell, enemy), the ...
- 267
1
vote
1
answer
59
views
Problem adding Class Node object to array
I am looking for the below code to be able to print out and return my final_path array from my #find_knight_path function. It runs just fine with the puts lines I have, but as soon as I try to puts ...
- 79