Is it necessary to escape the replacement string in a String.replace() call with a regular expression?

Question

In wonder if it is necessary to escape certain chars in the replacement string of a replace operation in Javascript. What I have is this:

let t = \"##links##\";
         


        

Answer 1

Dollar sign ($) is special in replace. If you want a single, literal dollar sign, use $$. Otherwise, the replacement string can include the following special replacement patterns:

• $$ Inserts a $.
• $& Inserts the matched substring.
• $` Inserts the portion of the string that precedes the matched substring.
• $' Inserts the portion of the string that follows the matched substring.
• $n Where n is a positive integer less than 100, inserts the nth parenthesized submatch string, provided the first argument was a RegExp object.