You want to sort an array of numbers in ascending order using the spaceship operator. Which code snippet correctly uses inside the sort method?

hard📝 Application Q8 of 15

Ruby - Operators and Expressions

You want to sort an array of numbers in ascending order using the spaceship operator. Which code snippet correctly uses <=> inside the sort method?

Aarr.sort { a, b => a <=> b }

Barr.sort { |a, b| b <=> a }

Carr.sort { |a, b| a <=> b }

Darr.sort { |a| a <=> a }

Step-by-Step Solution

Solution:

Step 1: Understand sorting with spaceship operator
The block for sort takes two parameters and compares them with <=>.
Step 2: Check each option
arr.sort { |a, b| a <=> b } correctly uses two block parameters and compares a <=> b for ascending order.
Final Answer:
arr.sort { |a, b| a <=> b } -> Option C
Quick Check:
Correct block syntax and comparison = D [OK]

Quick Trick: Use two block params and a <=> b for ascending sort [OK]

Common Mistakes:

Reversing operands for ascending
Using wrong block syntax
Using one parameter only

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You want to sort an array of numbers in ascending order using the spaceship operator. Which code snippet correctly uses inside the sort method?

Step 1: Understand sorting with spaceship operator

Step 2: Check each option

Final Answer:

Quick Check:

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