Given a hash scores = { 'Alice' => 10, 'Bob' => 15, 'Carol' => 12 }, how can you use each to print each name and score in the format Name: Score?

hard📝 Application Q8 of 15

Ruby - Enumerable and Collection Processing

Given a hash scores = { 'Alice' => 10, 'Bob' => 15, 'Carol' => 12 }, how can you use each to print each name and score in the format Name: Score?

Ascores.each { |name, score| puts "#{name}: #{score}" }

Bscores.each { |score| puts "#{name}: #{score}" }

Cscores.each do |name| puts "#{name}: #{score}" end

Dscores.each { |name| puts name }

Step-by-Step Solution

Solution:

Step 1: Understand hash iteration with each
When iterating a hash, each passes two block variables: key and value.
Step 2: Use both variables to print formatted string
scores.each { |name, score| puts "#{name}: #{score}" } correctly uses two variables and prints them in the required format.
Final Answer:
scores.each { |name, score| puts "#{name}: #{score}" } -> Option A
Quick Check:
Hash each uses two block variables [OK]

Quick Trick: Hash each passes key and value to block variables [OK]

Common Mistakes:

Using one block variable for hash
Referencing undefined variables
Incorrect string interpolation

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More Ruby Quizzes

Given a hash scores = { 'Alice' => 10, 'Bob' => 15, 'Carol' => 12 }, how can you use each to print each name and score in the format Name: Score?

Step 1: Understand hash iteration with each

Step 2: Use both variables to print formatted string

Final Answer:

Quick Check:

Want More Practice?

Step 1: Understand hash iteration with `each`