Trim comments from a string

trim-comments.js

// via https://github.com/suchipi/without-comments/blob/main/index.js
function trimComments(content, commentToken = "#") {
  const startRegex = new RegExp(`^${commentToken}`);
  const endRegex = new RegExp(`${commentToken}.*$`, "g");

  return content
    .split("\n")
    .map((line) => {
      // remove comment lines
      if (startRegex.test(line.trim())) return "";

      // remove trailing comments
      line = line.replace(endRegex, "");

      return line;
    })
    .filter((line) => line != null)
    .join("\n");
}