Camelize string in Javascript / ES6 💪

camelize.js

/* Transform dasherized, underscored string to camelCase */
const cameliseMe = (str, separator = "-") => {
  const splitted = str.split(separator);
  if (splitted.length === 1) return str;
  return splitted.reduce(
    (acc, [up, ...rest]) => `${acc}${up.toUpperCase() + rest.join("")}`
  );
};



/* Basic example
 cameliseMe('this-is-easy-dasherized-string');
 // OUTPUT:
 'thisIsEasyDasherizedString'
*/

Also possible to add sanitize option which would clean any white-spaces, and mixed lower/upper case of characters.
Like this: ThIs- is- CompleteLy-WroNG

const cameliseMe = (str, separator = "-", sanitize = false) => {
  const newStr = sanitize ? str.toLowerCase().replace(" ", "").trim() : str;
  const splitted = newStr.split(separator);
  if (splitted.length === 1) return newStr;
  return splitted.reduce(
    (acc, [up, ...rest]) => `${acc}${up.toUpperCase() + rest.join("")}`
  );
};
// Example: cameliseMe('ThIs- is- CompleteLy-WroNG', undefined, true) --> 'thisIsCompletelyWrong'