You want to create an array of squares of numbers from 0 to 4 using times. Which code correctly does this?

hard📝 Application Q15 of 15

Ruby - Loops and Iteration

You want to create an array of squares of numbers from 0 to 4 using times. Which code correctly does this?

Asquares = (0..4).times { |i| i * i } puts squares

Bsquares = 5.times { |i| i * i } puts squares

Csquares = [] 5.times do i squares.push(i * i) end puts squares

Dsquares = [] 5.times { |i| squares << i * i } puts squares

Step-by-Step Solution

Solution:

Step 1: Understand how to collect results in an array
Since times returns the integer, not an array, we must create an empty array and push results inside the block.
Step 2: Check each option for correct syntax and logic
squares = [] 5.times { |i| squares << i * i } puts squares initializes an empty array, uses 5.times with block parameter i, and appends i*i to the array correctly.
Final Answer:
squares = [] 5.times { |i| squares << i * i } puts squares -> Option D
Quick Check:
Use array and push inside times block [OK]

Quick Trick: Create array first, then push inside times block [OK]

Common Mistakes:

MISTAKES

Master "Loops and Iteration" in Ruby

9 interactive learning modes - each teaches the same concept differently

Want More Practice?

15+ quiz questions · All difficulty levels · Free

More Ruby Quizzes