Case conversion between camel case and snake case

conversions.js

const toCamel = (s) => {
  return s.replace(/([-_][a-z])/ig, ($1) => {
    return $1.toUpperCase()
      .replace('-', '')
      .replace('_', '');
  });
};

const toSnake = (s) => {
  return s.split(/(?=[A-Z])/).join('_').toLowerCase();
}