This blog is part of our Ruby 2.5 series.
Ruby 2.5.0-preview1 was recently released.
Let’s say that we have a string
want to remove
We can use chomp method.
irb> "Projects::CategoriesController".chomp("Controller") => "Projects::Categories"
However if we want to remove
Projects:: from the string then there is
no corresponding method of
chomp. We need to resort to
irb> "Projects::CategoriesController".sub(/Projects::/, '') => "CategoriesController"
Naotoshi Seo did not like using regular expression for such a simple task. He proposed that Ruby should have a method for taking care of such tasks.
Some of the names proposed were
Matz suggested the name
and this method was born.
Now in order to delete prefix we can use
delete_prefix and to delete
suffix we could use
chomp. This did not feel right. So for symmetry
delete_suffix was added.
Read up on this discussion to learn more about how elixir, go, python, and PHP deal with similar requirements.