Simple Angular function to convert underline case object keys to camel case

response-to-object.js

(function(angular) {
  function underlineToCamelCase(string) {
    return string.replace(/(\_[a-z])/g, function(match) {
      return match.toUpperCase().replace("_", "");
    });
  }
  
  function convertToCamelCaseObject(object) {
    if (typeof object != "object") return object;
  
    return Object.keys(object).reduce(function(newObject, key) {
      var newKey = underlineToCamelCase(key);
  
      if (object[key] instanceof Array) {
        newObject[newKey] = object[key].map(convertToCamelCaseObject);
      } else if (object[key] instanceof Object) {
        newObject[newKey] = convertToCamelCaseObject(object[key]);
      } else {
        newObject[newKey] = object[key];
      }
  
      return newObject;
    }, {});
  }
  
  function responseToObject(response) {
    if (response.data instanceof Array)
      return response.data.map(responseToObject);
  
    return convertToCamelCaseObject(response.data);
  }
  
  return angular.module("response-to-object", []).factory("responseToObject", responseToObject);
})(window.angular);