Replace many letters in a string in ruby gsub method

Question

Hi,
maybe someone can help me on this.. I would like to create a code in which I want to replace various letters of a string with the equivalent morse code. I know how to replace one letter, but it won't work for more than one. It's most likely an easy question, but I don't get it. I have used a gsub method in my code to replace the 'a'. Nested gsub? Or is there a better way?
https://code.sololearn.com/c773wbMGqEbA/?ref=app

Answer 1

I can answer it myself. You have to define a dictionary first and then use this in the gsub method. Pretty Easy.
https://code.sololearn.com/cpPoSOLKt1Bw/?ref=app