Tag: ruby

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Solving Longest Palindromic Substring: A Multi-Language Approach

2024-12-16web-developmentrubypython

Base64 Encoding in Ruby: Advanced Guide with Real-World Examples

2024-12-08rubyruby-on-railsweb-development

What is Rack and how does it relate to Rails?

2024-11-09ruby-on-railsweb-developmentruby

7 Python Best Practices for Writing Clean and Maintainable Code

2024-10-20pythonruby-on-railsruby

What are the security implications of using `eval` in Ruby, and how can you avoid them?

2024-10-20rubysecurityweb-development

What are some common performance bottlenecks in Rails applications and how do you address them?

2024-10-15ruby-on-railsperformancerubyweb-development

Explain the difference between 'include' and 'extend' in Ruby modules.

2024-10-15rubyruby-on-rails

How would you implement a soft delete feature in a Rails application?

2024-10-15rubyruby-on-railsweb-development

What are some popular background job processing libraries for Rails (e.g., Sidekiq, Delayed Job)?

2024-10-15rubyruby-on-rails

What are the different types of variables in Ruby and explain their scope?

2024-10-15rubyruby-on-rails

What is the Global Interpreter Lock (GIL) and how does it affect Ruby?

2024-10-14ruby

What techniques can you use to profile Ruby code and identify bottlenecks?

2024-10-12rubyperformance

What are the different types of data migrations in Rails?

2024-10-12ruby-on-railsrubydata-handlingweb-development

Extracting Color Palettes from Images: A Complete Guide to Color Analysis

2024-10-10ruby-on-railsrubydata-handling

How can you use `find_each` or `find_in_batches` to process large datasets efficiently?

2024-10-10ruby-on-railsrubydata-handling

What are some common strategies for preventing SQL injection vulnerabilities in Rails beyond ActiveRecord?

2024-10-10ruby-on-railssecurityrubyweb-development

Building a Basic API Authentication System in Ruby on Rails from Scratch

2024-10-10rubyruby-on-railssecurity

What are some best practices for writing secure Ruby code, especially when dealing with user input?

2024-10-10rubysecurityruby-on-rails

What is Action View in Rails?

2024-10-10ruby-on-railsweb-developmentruby

Explain the difference between `delegate` and `delegation` in Ruby, and how they can be used in Rails.

2024-10-05rubyruby-on-rails

What are 'open classes' in Ruby and what are their advantages and disadvantages?

2024-10-01rubyruby-on-rails

What are Service Objects and When Should You Use Them?

2024-09-22ruby

What is 'duck typing' and how does it apply to Ruby?

2024-09-20ruby

What are RubyGems and How Do They Work?

2024-09-20rubyweb-development

Explain the difference between `raise` and `fail` for raising exceptions.

2024-09-18ruby

Explain the difference between a symbol and a string in Ruby.

2024-09-18rubydata-handling

What are Active Record validations and how do you use them?

2024-09-15rubyruby-on-railsweb-development

What are the advantages of using Sidekiq as a background job processor?

2024-09-15rubyruby-on-railsperformance

Explain the difference between `load` and `require` in Ruby.

2024-09-15ruby

What are the different ways to handle background jobs in Rails?

2024-09-15ruby-on-railsrubyweb-development

How do you handle internationalization (i18n) and localization (l10n) in a Rails application?

2024-09-15ruby-on-railsrubyweb-development

What is the impact of the Global Interpreter Lock (GIL) on Ruby performance?

2024-09-15rubyperformance

Explain the difference between multithreading and multiprocessing in Ruby.

2024-09-15rubyperformance

What are Ruby's Access Control Modifiers and How Do They Differ?

2024-09-15ruby

How does the Ruby garbage collector affect the performance of Rails applications?

2024-09-15rubyruby-on-railsperformanceweb-development

What is the Asset Pipeline in Rails and how does it work?

2024-09-15ruby-on-railsweb-developmentruby

What are RubyGems and how do they work?

2024-09-15rubyweb-development

Explain the concept of 'technical debt' and how it relates to Rails development.

2024-09-15ruby-on-railsruby

What is a 'mixin' in Ruby and how is it used?

2024-09-15rubyruby-on-rails

What is Action Controller in Rails?

2024-09-15ruby-on-railsruby

How can you use Rack middleware to improve the performance of your application?

2024-09-10rubyperformance

How can you audit your gem dependencies to identify potential performance issues?

2024-09-01rubyperformance

Explain the concept of 'metaprogramming' in Ruby. Provide an example.

2024-09-01rubyweb-development

What are Active Record callbacks and how can they be used?

2024-08-22rubyruby-on-rails

What are some techniques for A/B testing in a Rails application?

2024-08-15ruby-on-railsrubyweb-development

How do you use Active Record's `find_each` and `find_in_batches` methods for processing large datasets?

2024-08-15rubyruby-on-railsdata-handling

What are 'scopes' in Active Record and how do you define them?

2024-08-15ruby-on-railsrubyweb-development

What is the purpose of the `ActiveModel::Serializers` gem, and how can it be used for API responses?

2024-08-15rubyruby-on-railsdata-handling

What is the role of the `after_commit` callback in the context of performance?

2024-08-15rubyruby-on-railsperformanceweb-development

What are some best practices for building high-performing APIs in Rails?

2024-08-15rubyruby-on-railsperformance

What is caching and how can you implement it in Rails?

2024-08-15ruby-on-railsrubyweb-developmentperformance

What is the difference between a `class` method and an `instance` method in ActiveRecord?

2024-08-15ruby-on-railsruby

What are some common performance bottlenecks in Rails applications and how do you address them?

2024-08-15rubyruby-on-railsperformanceweb-development

What is the purpose of the `config/initializers` directory, and give examples of its use?

2024-08-15ruby-on-railsrubyweb-development

Explain how you would debug a memory leak in a Ruby on Rails application.

2024-08-15rubyruby-on-railsperformance

Defining and Calling Methods Dynamically in Ruby

2024-08-15ruby

Defining RESTful Routes in Rails

2024-08-15ruby-on-railsrubyweb-development

What is the difference between a `class` method and an `instance` method in ActiveRecord?

2024-08-15ruby-on-railsruby

What is eager loading in ActiveRecord, and when is it beneficial?

2024-08-15ruby-on-railsrubyperformance

Explain the use of `counter_cache` in Rails and when it is beneficial.

2024-08-15ruby-on-railsrubyweb-development

What is the purpose of the `Gemfile` and `Gemfile.lock` files?

2024-08-15rubyruby-on-rails

How do you handle API versioning in a Rails application?

2024-08-15ruby-on-railsrubyweb-development

How do you handle parameters in Rails controllers?

2024-08-15ruby-on-railsrubyweb-development

5 Hidden Gems in the Ruby Standard Library You Should Know

2024-08-15ruby

How would you implement a search feature in a Rails application using a gem like Elasticsearch or Solr?

2024-08-15ruby-on-railsrubyweb-development

What is the purpose of the `ActiveSupport::Notifications` module and how can you use it for instrumentation?

2024-08-15rubyruby-on-railsweb-development

What are some tools for load testing Rails applications, and how to use them?

2024-08-15ruby-on-railsperformanceweb-developmentruby

How do you manage dependencies in a Ruby project using Bundler?

2024-08-15rubyruby-on-rails

Explain the concept of memoization in Ruby and its use in optimization.

2024-08-15rubyperformance

Explain the concept of 'memoization' in Ruby and how it can improve performance.

2024-08-15rubyperformance

How can you monitor and optimize the performance of your application's gem dependencies?

2024-08-15rubyperformance

What are some popular authentication gems for Rails (e.g., Devise, Authlogic)?

2024-08-15ruby-on-railsrubysecurityweb-development

What are some popular authorization gems for Rails (e.g., Pundit, CanCanCan)?

2024-08-15ruby-on-railsrubysecurity

6 Python Decorators That Will Make Your Code Cleaner

2024-08-15pythonruby

What is Active Record in Rails? Explain its key features.

2024-08-15ruby-on-railsrubyweb-development

Explain the concept of 'concerns' in Rails.

2024-08-15rubyruby-on-railsweb-development

What is the purpose of the `config.assets.precompile` setting in the Rails configuration?

2024-08-15ruby-on-railsweb-developmentruby

How do you handle internationalization (i18n) and localization (l10n) in a Rails application?

2024-08-15ruby-on-railsrubyweb-development

What is the purpose of the `lib` directory in a Rails application?

2024-08-15ruby-on-railsrubyweb-development

What are fixtures and factories in Rails testing?

2024-08-15ruby-on-railsruby

What are Rake tasks and how do you create custom Rake tasks?

2024-08-15rubydevops

How would you implement a rate-limiting feature in a Rails API to prevent abuse?

2024-08-15ruby-on-railsrubyweb-development

Explain the difference between processes and threads in Ruby concurrency.

2024-08-15ruby

Explain How Garbage Collection Works in Ruby and Its Potential Impact

2024-08-15rubyperformance

Explain the performance characteristics of different Ruby versions (e.g., 2.7 vs. 3.0).

2024-08-15rubyperformance

How do you send emails from a Rails application using Action Mailer?

2024-08-15rubyruby-on-railsweb-development

How do you test models in Rails?

2024-08-15ruby-on-railsruby

What tools can you use to identify and debug memory-related issues in Ruby?

2024-08-15rubyperformance

What tools do you use for profiling the performance of Rails code?

2024-08-15ruby-on-railsperformanceruby

What is the purpose of the `thread_mattr_accessor` and how does it differ from `class_attribute`?

2024-08-15ruby-on-railsruby

What are initializers in Rails and how are they used?

2024-08-15ruby-on-railsweb-developmentruby

What is the `bullet` gem, and how does it help improve performance?

2024-08-15rubyruby-on-railsperformance

What is the purpose of the `config/routes.rb` file?

2024-08-12rubyruby-on-railsweb-development

Explain the difference between `find`, `find_by`, and `where` in Active Record.

2024-08-10rubyruby-on-railsweb-development

How can you effectively use `rack-mini-profiler` to improve your app's performance?

2024-08-10rubyperformanceruby-on-railsweb-development

How do you handle forms in Rails? Explain the use of `form_for` and `form_with`.

2024-08-10ruby-on-railsrubyweb-development

What is the 'Eigenclass' or 'Singleton Class' in Ruby? How is it used?

2024-08-10ruby

What are some tools for static code analysis in Ruby and how can they improve code quality?

2024-08-10ruby

Explain the use of `yield` in Ruby methods.

2024-08-10ruby

Explain the different types of associations in Active Record (e.g., has_many, belongs_to, has_and_belongs_to_many, has_one).

2024-08-09ruby-on-railsrubyweb-development

How can you implement rate limiting in a Rails API to prevent abuse?

2024-08-09rubyruby-on-railssecurity

Explain the use of RSpec for testing in Rails.

2024-08-09rubyruby-on-rails

Leveraging TypeScript Decorators for Code Reusability and Maintainability

2024-08-09web-developmentruby

Explain how garbage collection works in Ruby and its potential impact.

2024-08-08rubyperformance

How can you handle exceptions in Ruby? Explain the `begin`, `rescue`, `ensure`, and `else` clauses.

2024-08-08ruby

How do you test controllers in Rails?

2024-08-08ruby-on-railsruby

Leveraging TypeScript Decorators for Code Reusability and Maintainability

2024-08-08web-developmentruby

Explain the N+1 query problem in ActiveRecord and its consequences.

2024-08-08rubyruby-on-railsperformance

6 Practical Uses of Ruby Metaprogramming to Simplify Your Code

2024-08-08ruby

Securing Your Ruby on Rails Application: Top Security Best Practices

2024-08-08ruby-on-railsrubysecurityweb-development

What is the role of the `tmp` directory in a Rails application's performance?

2024-08-08ruby-on-railsrubyweb-developmentperformance

What are Ruby's access control modifiers and how do they differ?

2024-08-08rubyruby-on-rails

How do you implement secure file uploads in a Rails application?

2024-08-08ruby-on-railssecurityruby

What is the purpose of `ActiveSupport::Concern` and how is it used?

2024-08-08rubyruby-on-rails

What is the purpose of the `super` keyword in Ruby?

2024-08-08rubyruby-on-rails