Convert Camel case to Kebab case

camel2kebab.js

/*
 * convert camel case string to kebab case string
 * e.g. camelCaseString => camel-case-string
 *
 * note:
 *  It doesn't support for weird camel case such as "HTMLElement"
 *  The first letter of camel case string should be with lower case.
 */
function convertStringCamelToKebab(camel) {
  return camel.split("").reduce((acc, char) => [...acc, char < "a" ? `-${char.toLowerCase()}` : char], []).join("");
}