Open the context
Choose the project folder and name the files or behavior involved.
Replace every literal token with supplied text without interpreting replacement markers. Reject an empty token and test $&, $1, $$ and input with no match while keeping the original string unchanged.
Choose the project folder and name the files or behavior involved.
Describe the input, expected output and boundaries that must stay intact.
Review the proposed edits and any commands before relying on their result.
Compare actual behavior with the expected result. If a check fails, investigate it before applying more changes.
if (token.length === 0) throw new Error("token.empty");
return source.replaceAll(token, () => replacement);The example is a starting point for a real project, not a claim that generated code is already tested. Adjust paths, dependencies and expected behavior to match your application.