Which of the following is the correct syntax to count down from 10 to 7 using downto in Ruby?

easy📝 Syntax Q12 of 15

Ruby - Loops and Iteration

Which of the following is the correct syntax to count down from 10 to 7 using downto in Ruby?

A10.downto(7) { |i| puts i }

B10.upto(7) { |i| puts i }

C7.downto(10) { |i| puts i }

D7.upto(10) { |i| puts i }

Step-by-Step Solution

Solution:

Step 1: Identify correct method for counting down
To count down from 10 to 7, use downto starting at 10 and ending at 7.
Step 2: Check syntax correctness
10.downto(7) { |i| puts i } correctly counts down and prints each number.
Final Answer:
10.downto(7) { |i| puts i } -> Option A
Quick Check:
Count down syntax = C [OK]

Quick Trick: downto starts at bigger number, ends at smaller [OK]

Common Mistakes:

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