[Solved] Why does Ruby allow variables to change type during execution without errors? — Ans: Because Ruby uses dynamic typing, checking types at runtime. | Ruby

Ruby - Variables and Data Types

Why does Ruby allow variables to change type during execution without errors?

ABecause Ruby requires explicit type declarations for variables.

BBecause Ruby compiles all types before running the program.

CBecause Ruby restricts variables to one type only.

DBecause Ruby uses dynamic typing, checking types at runtime.

Step-by-Step Solution

Solution:

Step 1: Recall Ruby's typing system
Ruby is dynamically typed, meaning type checks happen while the program runs.
Step 2: Understand effect on variables
This allows variables to hold different types at different times without compile-time errors.
Final Answer:
Because Ruby uses dynamic typing, checking types at runtime. -> Option D
Quick Check:
Dynamic typing means runtime type checks [OK]

Quick Trick: Dynamic typing means runtime type flexibility [OK]

Common Mistakes:

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