[Solved] Identify the problem in this code snippet: 10.upto(7) { |i| puts i } — Ans: upto cannot count down; start must be <= end | Ruby

Ruby - Loops and Iteration

Identify the problem in this code snippet:

10.upto(7) { |i| puts i }

Aupto cannot count down; start must be <= end

BMissing parentheses around block

CBlock variable is not used

DSyntax error due to missing 'end'

Step-by-Step Solution

Solution:

Step 1: Understand upto method behavior
upto counts up from start to end, so start must be less or equal to end.
Step 2: Analyze the code
Here, start is 10 and end is 7, which is counting down, invalid for upto.
Final Answer:
upto cannot count down; start must be <= end -> Option A
Quick Check:
upto requires start <= end = A [OK]

Quick Trick: upto counts up only; start must be <= end [OK]

Common Mistakes:

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