The following code is intended to replace all occurrences of 'apple' with 'orange' in the string, but it only replaces the first one. What is the error?

medium📝 Debug Q14 of 15

Ruby - String Operations

fruit = "apple banana apple grape"
new_fruit = fruit.sub('apple', 'orange')
puts new_fruit

AUse <code>gsub</code> instead of <code>sub</code> to replace all occurrences.

BThe string variable should be an array for replacement.

CThe replacement string must be in double quotes.

DThe method <code>sub</code> does not exist in Ruby.

Step-by-Step Solution

Solution:

Step 1: Identify the method used
The code uses sub, which replaces only the first match.
Step 2: Correct method for replacing all matches
To replace all occurrences, gsub should be used instead of sub.
Final Answer:
Use gsub instead of sub to replace all occurrences. -> Option A
Quick Check:
gsub replaces all matches, sub replaces first only [OK]

Quick Trick: Use gsub for all replacements, sub for first only [OK]

Common Mistakes:

Using sub when gsub is needed
Thinking sub works on arrays
Believing method names are case sensitive differently

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The following code is intended to replace all occurrences of 'apple' with 'orange' in the string, but it only replaces the first one. What is the error?

Step 1: Identify the method used

Step 2: Correct method for replacing all matches

Final Answer:

Quick Check:

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