Ruby global match regexp?

Question

In other languages, in RegExp you can use /.../g for a global match.

However, in Ruby:

\"hello hello\".match /(hello)/

Answer 1

Here's a tip for anyone looking for a way to replace all regex matches with something else.

Rather than the //g flag and one substitution method like many other languages, Ruby uses two different methods instead.

# .sub — Replace the first
"ABABA".sub(/B/, '') # AABA

# .gsub — Replace all
"ABABA".gsub(/B/, '') # AAA