Ruby - Regular Expressions
What will be the output of this Ruby code?
text = "OpenAI GPT-4" index = text =~ /GPT/ puts index
What will be the output of this Ruby code?
medium📝 Predict Output Q13 of 15
Step-by-Step Solution
Solution:
Step 1: Locate the pattern in the string
The string is "OpenAI GPT-4". The substring "GPT" starts at index 7 (counting from 0).Step 2: Understand what =~ returns
The operator returns the index of the first match, so it returns 7.Final Answer:
7 -> Option CQuick Check:
Index of "GPT" in string = 7 [OK]
Quick Trick: Count characters from zero to find match index [OK]
Common Mistakes:
- Counting from 1 instead of 0
- Expecting true/false instead of index
- Assuming nil if unsure
Master "Regular Expressions" in Ruby
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