Match operator (=~) in Ruby - Mini Project: Build & Apply

Using the Match Operator (=~) in Ruby

📖 Scenario: You are working on a simple text analyzer that checks if certain words appear in sentences. This is useful for filtering messages or searching for keywords.

🎯 Goal: Build a Ruby program that uses the match operator =~ to find if a word exists inside a sentence.

📋 What You'll Learn

Create a variable called sentence with a specific string.

Create a variable called word with a specific string.

Use the match operator =~ to check if word is in sentence.

Print the result of the match operation.

💡 Why This Matters

🌍 Real World

Searching for keywords in text messages, logs, or user input is common in many apps.

💼 Career

Understanding how to find patterns in text is useful for roles in software development, data analysis, and quality assurance.

1

Create the sentence variable

Create a variable called sentence and set it to the string "The quick brown fox jumps over the lazy dog".

Ruby

# Create the sentence variable
# Your code here

Need a hint?

Use = to assign the string to sentence.

2

Create the word variable

Create a variable called word and set it to the string "fox".

Ruby

sentence = "The quick brown fox jumps over the lazy dog"
# Create the word variable
# Your code here

Need a hint?

Assign the string "fox" to the variable word.

3

Use the match operator to find the word

Create a variable called position and set it to the result of sentence =~ /#{word}/ to find the position of word in sentence.

Ruby

sentence = "The quick brown fox jumps over the lazy dog"
word = "fox"
# Use the match operator to find the word position
# Your code here

Need a hint?

Use =~ with a regular expression containing word inside slashes.

4

Print the match result

Print the value of the variable position using puts.

Ruby

sentence = "The quick brown fox jumps over the lazy dog"
word = "fox"
position = sentence =~ /#{word}/
# Print the position
# Your code here

Need a hint?

Use puts position to display the index where the word starts.