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Ruby Interview Questions

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61.

What is the ... (three dots) operator for argument forwarding?

intermediate

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62.

What is the difference between then, yield_self, and tap?

intermediate

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63.

What is the difference between a block, proc, and lambda?

expert

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64.

Explain the Ruby method lookup chain.

expert

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65.

What is the difference between rescue StandardError and rescue Exception?

expert

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66.

What is the purpose of Rails middleware?

expert

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67.

What is optimistic locking in Rails?

expert

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68.

What are the common performance optimization techniques in Ruby?

expert

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69.

How do you profile Ruby code performance?

expert

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70.

What is memory leak in Ruby and how do you prevent it?

expert

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71.

What is metaprogramming in Ruby?

expert

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72.

Explain method_missing and how to use it safely.

expert

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73.

What is the difference between class_eval and instance_eval?

expert

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74.

What are singleton methods and singleton classes?

expert

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75.

What is the Global Interpreter Lock (GIL) in Ruby?

expert

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76.

What is the difference between Thread and Fiber in Ruby?

expert

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77.

How do you handle thread safety in Ruby?

expert

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78.

What are common security vulnerabilities in Ruby applications?

expert

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79.

Explain the SOLID principles in context of Ruby.

expert

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80.

What is Rack and why is it important?

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Showing 61 to 80 of 85 results

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