[Solved] Find the error in this Ruby code: 1.downto(3) { |i| puts i } — Ans: downto cannot count up; start must be >= end | Ruby

Ruby - Loops and Iteration

Find the error in this Ruby code:

1.downto(3) { |i| puts i }

AThe block variable is missing

BMissing 'end' keyword for block

Cdownto requires a range, not a number

Ddownto cannot count up; start must be >= end

Step-by-Step Solution

Solution:

Step 1: Understand downto method requirements
downto counts down from start to end, so start must be greater or equal to end.
Step 2: Check given code
Here, start is 1 and end is 3, which is counting up, invalid for downto.
Final Answer:
downto cannot count up; start must be >= end -> Option D
Quick Check:
downto requires start >= end = A [OK]

Quick Trick: downto counts down only; start must be >= end [OK]

Common Mistakes:

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