Welcome to the Treehouse Community

Want to collaborate on code errors? Have bugs you need feedback on? Looking for an extra set of eyes on your latest project? Get support with fellow developers, designers, and programmers of all backgrounds and skill levels here with the Treehouse Community! While you're at it, check out some resources Treehouse students have shared here.

Looking to learn something new?

Treehouse offers a seven day free trial for new students. Get access to thousands of hours of content and join thousands of Treehouse students and alumni in the community today.

Start your free trial

Ruby Build an Address Book in Ruby Search Searching by Phone Number

MICHAEL P
MICHAEL P
5,191 Points
Posted by MICHAEL P
MICHAEL P
5,191 Points

What is the reason to use the gsub method? I am not quite clear on the use of it.

What is the reason to use the gsub method? I am not quite clear on the use of it.

2 Answers

rowend rowend
rowend rowend
2,926 Points
rowend rowend
rowend rowend
2,926 Points

It replaces all the charcaters '-' with empty strings. For example: '1-2-3' becomes '123'.

Marcus Quarles
Marcus Quarles
14,598 Points
Marcus Quarles
Marcus Quarles
14,598 Points

Hello,

In order to gain a better understanding of the .gsub method you should review the regular expressions concept as a whole. http://www.dotnetperls.com/sub-ruby has nice examples that show what the method does.