[Solved] Given a string with multiple dates like '2023-05-01 and 2024-06-15', write a Ruby regex with capture groups to extract year, month, and day separately... Which regex correctly captures these parts? | Ruby

Ruby - Regular Expressions

Given a string with multiple dates like '2023-05-01 and 2024-06-15', write a Ruby regex with capture groups to extract year, month, and day separately for each date. Which regex correctly captures these parts?

A/(\d{4})-(\d{2})-(\d{2})/

B/(\d{2})-(\d{2})-(\d{4})/

C/(\d{4})\/(\d{2})\/(\d{2})/

D/(\d{4})(\d{2})(\d{2})/

Step-by-Step Solution

Solution:

Step 1: Analyze date format in string
Dates are in 'YYYY-MM-DD' format with dashes.
Step 2: Match regex to format
/(\d{4})-(\d{2})-(\d{2})/ matches four digits, dash, two digits, dash, two digits with capture groups.
Final Answer:
/(\d{4})-(\d{2})-(\d{2})/ -> Option A
Quick Check:
Year-month-day with dashes = /(\d{4})-(\d{2})-(\d{2})/ [OK]

Quick Trick: Match exact separators and digit counts in capture groups [OK]

Common Mistakes:

Swapping month and year positions
Using wrong separators like slashes
Missing dashes between groups

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Which regex correctly captures these parts?

Step 1: Analyze date format in string

Step 2: Match regex to format

Final Answer:

Quick Check:

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