Tag: ruby-on-rails

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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

What are Service Objects and when should you use them?

2024-11-01ruby-on-rails

What are layouts and partials in Rails views?

2024-10-25ruby-on-railsweb-development

Explain the concept of 'nested resources' in Rails routing.

2024-10-21ruby-on-railsweb-development

7 Python Best Practices for Writing Clean and Maintainable Code

2024-10-20pythonruby-on-railsruby

How do you handle database schema conflicts when working with a team on a Rails project?

2024-10-20ruby-on-rails

Explain the role of Action Cable in Rails and how it facilitates real-time features.

2024-10-17ruby-on-railsweb-development

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

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

What is the purpose of the `config.cache_classes` setting, and when to use it?

2024-10-15ruby-on-railsperformance

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

2024-10-15rubyruby-on-rails

How can you use Action Cable effectively without degrading application performance?

2024-10-15ruby-on-railsweb-developmentperformance

What is the impact of including too many gems in your Gemfile on performance?

2024-10-15ruby-on-railsperformanceweb-development

What techniques can you use for horizontal scaling of a Rails application?

2024-10-15ruby-on-railsperformanceweb-development

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

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

What is the MVC architecture and how does it apply to Rails?

2024-10-15ruby-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 database indexes, and how do they improve query performance in Rails?

2024-10-15ruby-on-rails

What are some techniques for optimizing a Rails application for SEO?

2024-10-15ruby-on-railsweb-developmentperformance

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

2024-10-15rubyruby-on-rails

What is the Purpose of the `params` Hash in a Controller?

2024-10-14web-developmentruby-on-rails

Building a Real-Time Application with Ruby on Rails and Action Cable

2024-10-12ruby-on-railsweb-development

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

What are some common performance issues related to routing in Rails?

2024-10-05ruby-on-railsperformance

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

2024-10-05rubyruby-on-rails

Explain the concept of 'optimistic locking' in Active Record and how it helps prevent race conditions.

2024-10-01ruby-on-rails

Top 6 Ruby on Rails Interview Questions for Mid-Level Developers

2024-10-01ruby-on-rails

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

2024-10-01rubyruby-on-rails

How would you use a background job to generate and serve a large downloadable file without blocking the main web process?

2024-09-20ruby-on-railsweb-development

Explain the use of Active Job in Rails.

2024-09-20ruby-on-rails

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

What are some techniques for avoiding and debugging memory leaks in Rails?

2024-09-15ruby-on-rails

What are some best practices for writing performant database migrations?

2024-09-15performanceruby-on-rails

What are some caching best practices to follow in a Rails application?

2024-09-15ruby-on-railsperformanceweb-development

What are some common caching mistakes that can negatively impact performance?

2024-09-15performanceweb-developmentruby-on-rails

What is the difference between `save` and `save!` in ActiveRecord?

2024-09-15ruby-on-railsweb-development

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

Implementing Authorization in a Ruby on Rails API with Pundit

2024-09-15ruby-on-railssecurity

Explain how you would implement a feature flag system in a Rails application.

2024-09-15ruby-on-rails

Mastering TypeScript Enums: Best Practices and Use Cases

2024-09-15web-developmentruby-on-rails

How can you optimize the performance of ActiveRecord `find` methods?

2024-09-15ruby-on-railsperformance

Optimizing Ruby on Rails Assets for Faster Page Load Times

2024-09-15ruby-on-railsperformance

What is the Asset Pipeline, and how does it impact Rails performance?

2024-09-15ruby-on-railsperformanceweb-development

Explain the use of helpers in Rails views.

2024-09-15ruby-on-railsweb-development

What are Fixtures and Factories in Rails Testing?

2024-09-15ruby-on-rails

How would you implement WebSockets in a Rails application without using Action Cable?

2024-09-15ruby-on-railsweb-development

How do you render views in Rails controllers?

2024-09-15ruby-on-railsweb-development

What is the role of a reverse proxy like Nginx or Apache in a Rails setup?

2024-09-15ruby-on-railsweb-development

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

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

What are some techniques for speeding up the boot time of a Rails application?

2024-09-15ruby-on-railsperformanceweb-development

How do you use `ActiveRecord::Dirty` to track changes to model attributes?

2024-09-15ruby-on-rails

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

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

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

What is the purpose of the `config/environments` directory?

2024-09-14ruby-on-railsweb-development

What are the performance trade-offs between using ActiveRecord and writing raw SQL?

2024-09-01ruby-on-railsweb-development

What are some techniques for monitoring the overall performance of a Rails app?

2024-09-01ruby-on-railsperformanceweb-development

What are the most common performance bottlenecks in Rails applications?

2024-08-22ruby-on-railsperformanceweb-development

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

2024-08-22rubyruby-on-rails

How do you handle database indexes in Rails migrations, and what are the different types of indexes?

2024-08-20ruby-on-railsweb-development

What is the N+1 Query Problem and How Do You Solve It?

2024-08-20performanceruby-on-rails

What are 'strong parameters' in Rails and why are they important?

2024-08-18ruby-on-railsweb-development

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 are transactions in Active Record and how do you use them?

2024-08-15ruby-on-railsweb-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 are some best practices for writing maintainable and scalable Rails code?

2024-08-15ruby-on-railsweb-developmentperformance

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 are some common pitfalls when upgrading a Rails application to a new major version?

2024-08-15ruby-on-railsweb-development

Top 5 Ruby on Rails Authentication Gems Compared

2024-08-15ruby-on-railssecurity

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

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

How do you configure different environments in a Rails application (e.g., development, test, production)?

2024-08-15ruby-on-rails

How do you configure and use `ActiveSupport::Cache::Store` effectively?

2024-08-15ruby-on-railsperformance

How do you configure and use Rails log levels?

2024-08-15ruby-on-railsdevops

What is the purpose of the params hash in a controller?

2024-08-15ruby-on-railsweb-development

What are controllers in Rails and what is their role?

2024-08-15ruby-on-railsweb-development

What is convention over configuration in Rails?

2024-08-15ruby-on-railsweb-development

Counter Cache in Rails: A Performance Optimization Guide

2024-08-15ruby-on-railsperformance

Creating and Using Custom Middleware in Rails

2024-08-15ruby-on-railsperformanceweb-development

Database Migrations Impact on Performance and Mitigation Strategies

2024-08-15performanceruby-on-rails

Database Schema Design Strategies for Performance

2024-08-15performanceruby-on-rails

Understanding the Purpose of schema.rb in Rails

2024-08-15ruby-on-rails

Understanding Rails db:seed Task: Purpose and Usage

2024-08-15ruby-on-rails

How to Debug Memory Leaks in Ruby on Rails Applications

2024-08-15ruby-on-railsperformance

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

2024-08-15rubyruby-on-railsperformance

Defining Associations in Active Record Models

2024-08-15ruby-on-rails

Defining Database Schema in Rails Using Migrations

2024-08-15ruby-on-rails

Defining RESTful Routes in Rails

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

Delayed Job Drawbacks and Limitations

2024-08-15ruby-on-railsperformance

Deploying Rails Applications to Production

2024-08-15ruby-on-railsweb-developmentdevops

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

2024-08-15ruby-on-railsruby

Understanding Cookies vs Sessions in Rails

2024-08-15ruby-on-railsweb-developmentsecurity

What is the difference between `update` and `update_attributes`?

2024-08-15ruby-on-railsweb-development

Differentiate between `includes`, `preload`, and `eager_load` in ActiveRecord.

2024-08-15ruby-on-rails

How do you perform eager loading of associations in Active Record?

2024-08-15ruby-on-railsperformance

What is Eager Loading in ActiveRecord, and When is it Beneficial?

2024-08-15ruby-on-railsperformance

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

How do you handle time zones effectively in a Rails application, especially when dealing with users in different locations?

2024-08-15ruby-on-rails

How do you identify performance issues in a Ruby on Rails application?

2024-08-15ruby-on-railsperformanceweb-development

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

Describe how you would integrate a front-end framework like React or Vue.js with a Rails backend.

2024-08-15web-developmentruby-on-rails

What is the role of a load balancer in a high-traffic Rails application setup?

2024-08-15ruby-on-railsweb-developmentperformance

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

Monitoring Ruby on Rails Application Performance in Production

2024-08-15ruby-on-railsdevopsperformance

What are the advantages and disadvantages of using a NoSQL database like MongoDB with a Rails application?

2024-08-15ruby-on-railsweb-development

How can you optimize database queries in a Rails application?

2024-08-15ruby-on-railsperformance

What are the new performance-related features introduced in Rails 7?

2024-08-15ruby-on-railsperformanceweb-development

What is the performance impact of using many validations in your models?

2024-08-15performanceruby-on-rails

Explain the use of `pluck` vs `select` in ActiveRecord

2024-08-15ruby-on-railsperformance

Explain the use of `pluck` vs `select` in ActiveRecord.

2024-08-15ruby-on-rails

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

What is the purpose of the `app/channels` directory in a Rails 6+ application?

2024-08-15ruby-on-railsweb-development

What is the purpose of the `protect_from_forgery` method in controllers?

2024-08-15ruby-on-railssecurityweb-development

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

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

How can you use a caching mechanism like Redis or Memcached with Rails?

2024-08-15ruby-on-railsweb-developmentperformance

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

What is the purpose of the `config.force_ssl` setting and when should you use it?

2024-08-15ruby-on-railssecurityweb-development

When is using `counter_cache` not recommended, and what are the alternatives?

2024-08-15ruby-on-railsweb-developmentperformance

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 the trade-offs between using a monolithic architecture versus a microservices architecture for a Rails application?

2024-08-15ruby-on-railsweb-development

What is the purpose of the `config/secrets.yml` file (or credentials in Rails 5.2+) and how does it enhance security?

2024-08-15ruby-on-railssecurity

What are some common security vulnerabilities in web applications and how does Rails address them (e.g., XSS, CSRF, SQL injection)?

2024-08-15ruby-on-railssecurityweb-development

What are fixtures and factories in Rails testing?

2024-08-15ruby-on-railsruby

How do you authorize users in a Rails application? Explain the concept of role-based access control.

2024-08-15ruby-on-railssecurityweb-development

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

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

How do you rollback a migration in Rails?

2024-08-15ruby-on-railsweb-development

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

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

How do you solve the N+1 query problem in a Rails application?

2024-08-15ruby-on-railsperformance

How do you test models in Rails?

2024-08-15ruby-on-railsruby

Explain how you would test a Rails application that heavily relies on external API calls.

2024-08-15ruby-on-rails

What are some tools for monitoring and profiling Rails applications?

2024-08-15ruby-on-railsdevopsperformance

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 REST and how does it relate to Rails?

2024-08-15ruby-on-railsweb-development

How can you optimize the use of ActiveRecord callbacks to avoid performance issues?

2024-08-12ruby-on-railsperformance

How would you approach optimizing a specific, slow-performing feature in Rails?

2024-08-12ruby-on-railsweb-development

What are the different types of filters in Rails controllers (e.g., before_action, after_action)?

2024-08-12ruby-on-rails

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 does Rails handle Cross-Site Request Forgery (CSRF) protection?

2024-08-10ruby-on-railssecurityweb-development

Explain how to implement HTTP caching in Rails, including ETags.

2024-08-10ruby-on-railssecurityperformance

4 Ways to Implement Background Jobs in Ruby on Rails

2024-08-10ruby-on-rails

How can you implement a GraphQL API in a Rails application?

2024-08-10ruby-on-railsweb-development

How can you implement read replicas in a Rails application using ActiveRecord?

2024-08-10ruby-on-rails

What are some strategies for optimizing a Rails app for high traffic?

2024-08-10ruby-on-railsweb-developmentperformance

Optimizing Ruby on Rails Database Queries: Identifying and Fixing Slow Queries

2024-08-10ruby-on-railsperformance

What is the difference between a `before_save` and a `before_validation` callback, and when would you use each?

2024-08-10ruby-on-rails

Explain different caching strategies in Rails (e.g., page caching, fragment caching, action caching).

2024-08-10ruby-on-railsperformanceweb-development

How would you use Redis or Memcached for caching in a Rails application?

2024-08-10ruby-on-railsperformanceweb-development

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

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

5 Common Ruby on Rails Security Vulnerabilities and How to Prevent Them

2024-08-10ruby-on-railssecurity

What are some strategies for scaling a Rails application horizontally?

2024-08-10ruby-on-railsperformanceweb-development

How do you test views in Rails?

2024-08-10ruby-on-railsweb-development

How do you test a Rails application? Explain the different types of tests (e.g., unit, integration, functional).

2024-08-10ruby-on-rails

How do you write raw SQL queries in ActiveRecord?

2024-08-10ruby-on-railsweb-development

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

Explain the role of 'middleware' in a Rails application.

2024-08-09ruby-on-railsweb-development

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

2024-08-09rubyruby-on-railssecurity

How does Rails handle database connection pooling, and why is it important?

2024-08-09ruby-on-railsweb-developmentperformance

Explain the use of RSpec for testing in Rails.

2024-08-09rubyruby-on-rails

5 Python Design Patterns Every Developer Should Know

2024-08-08pythonruby-on-rails

How do you authenticate users in a Rails application?

2024-08-08ruby-on-railssecurityweb-development

Building a Simple REST API with Ruby on Rails: A Step-by-Step Guide

2024-08-08ruby-on-rails

Building a GraphQL API with Ruby on Rails

2024-08-08ruby-on-rails

Building a GraphQL API with Ruby on Rails

2024-08-08ruby-on-rails

How do you configure Puma or Unicorn for optimal performance in production?

2024-08-08ruby-on-railsweb-developmentperformance

7 Essential TypeScript Features for Building Scalable Applications

2024-08-08web-developmentperformanceruby-on-rails

Explain the concept of 'migrations' in Rails and how they work.

2024-08-08ruby-on-rails

How do you test controllers in Rails?

2024-08-08ruby-on-railsruby

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

2024-08-08rubyruby-on-railsperformance

How can you optimize logging in a production Rails environment?

2024-08-08ruby-on-railsdevopsperformance

Implementing Caching in a Ruby on Rails Application for Performance Improvement

2024-08-08ruby-on-railsweb-developmentperformance

Explain the different caching strategies available in Rails (page, fragment, action).

2024-08-08ruby-on-railsperformanceweb-development

How can you optimize your Rails application for mobile users and devices?

2024-08-08ruby-on-railsperformanceweb-development

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

How would you use Redis in a Rails application beyond caching (e.g., for data structures, pub/sub)?

2024-08-08ruby-on-railsweb-development

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

2024-08-08rubyruby-on-rails

5 Ruby on Rails Best Practices for Faster Development Cycles

2024-08-08ruby-on-railsweb-developmentperformance

4 Ruby on Rails Performance Bottlenecks and How to Optimize Them

2024-08-08ruby-on-railsperformance

Explain the concept of 'Russian doll caching' and how it can improve performance in nested views.

2024-08-08performanceweb-developmentruby-on-rails

How can you scale Redis effectively when using it for Rails caching?

2024-08-08ruby-on-railsperformance

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

Best Practices for Writing Effective Git Commit Messages

2023-11-01ruby-on-rails