How can I replace all occurrences of a dollar ($) with an underscore (_) in javascript?

Question

As the title states, I need to relace all occurrences of the $ sign in a string variable with an underscore.

I have tried:

str.replace(new RegExp(\'$         


        

Answer 1

........

str.replace(new RegExp('\\$', 'g'), '_');

Becaue $ is special char in js, you need to escape it.