Ruby get last * in a string

Question

I have a string with different data and stars as well. How can I get the index of the last *? For example

hello * there * *

Now how can I get the index of the 3rd *?

Answer 1

Use String.rindex :

Returns the index of the last occurrence of the given substring or pattern (regexp) in str. Returns nil if not found.

x = 'hello * there * *'
puts x.rindex('*') # 16