[Solved] What will be the output of the following Ruby code? text = "hello hello hello" result = text.sub('hello', 'hi') puts result | Ruby

Ruby - String Operations

What will be the output of the following Ruby code?

text = "hello hello hello"
result = text.sub('hello', 'hi')
puts result

Ahi hello hello

Bhello hi hello

Chi hi hi

Dhello hello hi

Step-by-Step Solution

Solution:

Step 1: Understand what sub does here
sub replaces only the first occurrence of 'hello' with 'hi'.
Step 2: Apply replacement to the string
The first 'hello' becomes 'hi', the rest remain unchanged, so the string becomes "hi hello hello".
Final Answer:
hi hello hello -> Option A
Quick Check:
sub replaces first match only [OK]

Quick Trick: sub changes only first match, others stay same [OK]

Common Mistakes:

MISTAKES

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