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What is a key advantage of using IRB for Ruby developers during coding?

hard📝 Conceptual Q10 of 15
Ruby - Basics and Runtime
What is a key advantage of using IRB for Ruby developers during coding?
AGenerates full Ruby applications from templates
BAutomatically compiles Ruby code into machine language
CProvides a graphical interface for Ruby development
DAllows immediate testing of Ruby code snippets interactively
Step-by-Step Solution
Solution:
  1. Step 1: Understand IRB's purpose

    IRB is an interactive Ruby shell that lets developers test code snippets immediately.
  2. Step 2: Evaluate other options

    IRB does not compile code to machine language, provide a GUI, or generate full applications.
  3. Final Answer:

    Allows immediate testing of Ruby code snippets interactively -> Option D
  4. Quick Check:

    IRB is for interactive code testing, not compiling or GUI [OK]
Quick Trick: IRB lets you try Ruby code instantly without saving files [OK]
Common Mistakes:
  • Thinking IRB compiles Ruby code
  • Confusing IRB with IDEs that have GUIs
  • Assuming IRB generates full applications

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