[Solved] What will be the output of this Ruby code? sentence = "one two three four" result = sentence.scan(/\b\w{3}\b/) puts result.inspect | Ruby

Ruby - Regular Expressions

What will be the output of this Ruby code?

sentence = "one two three four"
result = sentence.scan(/\b\w{3}\b/)
puts result.inspect

A["one", "two"]

B["one", "two", "three", "four"]

C["three", "four"]

D[]

Step-by-Step Solution

Solution:

Step 1: Understand the regex pattern
/\b\w{3}\b/ matches words exactly 3 letters long.
Step 2: Apply scan to the sentence
Words "one" and "two" have 3 letters; "three" and "four" do not.
Final Answer:
["one", "two"] -> Option A
Quick Check:
scan with word length 3 = A [OK]

Quick Trick: Use \w{n} to match words of length n [OK]

Common Mistakes:

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