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Ruby Ruby Foundations Strings String Methods: Part 1

Jessica Barnett
Jessica Barnett
8,028 Points
Posted by Jessica Barnett
Jessica Barnett
8,028 Points

Ruby String.replace method

Why use this:

my_string.replace("new text")

When you could just reassign the variable like this:

my_string = "new text"

I was looking through the ruby docs to see if it doubles as a find-and-replace function like javascript's String.replace method, but it doesn't. There's another method, String.gsub, which fills that role.

Is there a performance benefit? I can't see any other reason why I should use it...

1 Answer

Michael Alaev
Michael Alaev
5,415 Points
Michael Alaev
Michael Alaev
5,415 Points

Easier then declaring again variables down in your code for example in one function it can work as X and the other one it can work as Y. Also I think = works a bit slower then .replace but not sure.