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Ruby Interview Questions

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41.

What debugging techniques are available in Ruby?

intermediate

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42.

What is the difference between render and redirect_to in Rails?

intermediate

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43.

What are Rails callbacks and when should you use them?

intermediate

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44.

What is the N+1 query problem and how do you solve it?

intermediate

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45.

What is the difference between concerns and services in Rails?

intermediate

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46.

Explain strong parameters in Rails.

intermediate

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47.

What is the difference between has_many :through and has_and_belongs_to_many?

intermediate

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48.

Explain database transactions in Rails.

intermediate

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49.

What are scopes in ActiveRecord and how do they differ from class methods?

intermediate

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50.

Explain the difference between delete and destroy in ActiveRecord.

intermediate

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51.

What is the difference between lazy and eager evaluation?

intermediate

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52.

How do you securely handle sensitive data in Ruby?

intermediate

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53.

What is the Singleton pattern and how is it implemented in Ruby?

intermediate

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54.

What is the difference between composition and inheritance?

intermediate

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55.

What is the Law of Demeter and how does it apply to Ruby?

intermediate

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56.

What is the difference between fail-fast and fail-safe approaches?

intermediate

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57.

What is pattern matching in Ruby and how does it work?

intermediate

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58.

What are endless method definitions in Ruby 3?

intermediate

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59.

What are numbered block parameters?

intermediate

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60.

Explain keyword argument separation in Ruby 3.0

intermediate

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Showing 41 to 60 of 85 results

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