Convert strings or object keys from underscore_naming to camelCaseNaming. Example here: https://glitch.com/edit/#!/camelize

camelize.js

function camelize(s) {
  return s.replace(/(?:-|_)([a-z])/g, (c) => c[1].toUpperCase());
}

function camelizeObjectKeys(o) {
  const entries = Object.entries(o);
  const output = {};
  
  entries.forEach(([key, value]) => output[camelize(key)] = value);
  
  return output;
}