Ruby - Regular Expressions
What will be the output of this Ruby code?
sentence = "Welcome to Ruby" position = sentence =~ /Ruby/ puts position
What will be the output of this Ruby code?
medium📝 Predict Output Q4 of 15
Step-by-Step Solution
Solution:
Step 1: Understand the =~ operator
The operator returns the index of the first match of the regex pattern in the string.Step 2: Locate the pattern in the string
"Ruby" starts at index 11 in "Welcome to Ruby" (counting from 0).Final Answer:
11 -> Option DQuick Check:
Check string indexing and pattern position [OK]
Quick Trick: =~ returns index of first match or nil [OK]
Common Mistakes:
- Assuming index starts at 1 instead of 0
- Expecting the operator to return true/false
- Confusing =~ with match method
Master "Regular Expressions" in Ruby
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