How can you read a CSV file and convert it into an array of hashes with headers as keys using Ruby's CSV library?

hard📝 Application Q9 of 15

Ruby - File IO

ACSV.open('file.csv', 'r') { |csv| csv.to_h }

BCSV.foreach('file.csv') { |row| row.to_h }

CCSV.read('file.csv', headers: true).map(&:to_h)

DCSV.generate('file.csv', headers: true)

Step-by-Step Solution

Solution:

Step 1: Understand headers option
Passing headers: true to CSV.read treats the first row as headers and returns CSV::Table.
Step 2: Convert rows to hashes
Mapping each row with to_h converts CSV::Row objects to hashes with header keys.
Step 3: Analyze other options
CSV.foreach does not return array; CSV.open returns file object; CSV.generate creates CSV string.
Final Answer:
CSV.read('file.csv', headers: true).map(&:to_h) -> Option C
Quick Check:
Use headers: true and map to_h for array of hashes [OK]

Quick Trick: Use headers: true and map(&:to_h) to get hashes [OK]

Common Mistakes:

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