How can you use scan to extract all words that do NOT contain the letter 'e' from a string?

hard📝 Application Q9 of 15

Ruby - Regular Expressions

How can you use scan to extract all words that do NOT contain the letter 'e' from a string?

AUse scan with regex /\b\w*e\w*\b/

BUse scan with regex /\b\w+\b/ and filter later

CUse scan with regex /\b[^e\W]+\b/i

DUse scan with regex /\b[^\we]+\b/

Step-by-Step Solution

Solution:

Step 1: Understand regex to exclude 'e'
The pattern /\b[^e\W]+\b/i matches words without 'e' ignoring case.
Step 2: Explain pattern parts
Inside brackets [^e\W] means any character except 'e' or non-word chars; + means one or more.
Final Answer:
Use scan with regex /\b[^e\W]+\b/i -> Option C
Quick Check:
Exclude letter with negated char class = B [OK]

Quick Trick: Use negated character class [^e] to exclude 'e' [OK]

Common Mistakes:

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