Ruby: Learn Ruby in 24 Hours or Less - A Beginner’s Guide To Learning Ruby Programming Now (Ruby, Ruby Programming, Ruby Course) by Robert Dwight

Author:Robert Dwight [Dwight, Robert]
Language: eng
Format: azw3
Published: 2016-05-08T16:00:00+00:00

first_sample = “hit and run”

second_sample = first_sample.sub(/n/, “$”)

third_sample = first_sample.gsub(/n/, “$”)

puts “This line uses the sub method: #{second_sample}”

puts “This line uses the gsub method: #{third_sample}”

output:

This line uses the sub method: hit a$d run

This line uses the gsub method: hit a$d ru$

Pattern-Based Substitutions

You've learned how to perform string replacements using the sub/gsub methods. The examples given earlier involved fixed text. However, it's important to point out that substitution processes also work on other patterns (e.g. those that involve groupings, alterations and/or alternations). Analyze the following code:

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