Traditional Switch Case / Else if

user.tradtional.service.js

/**
 * This method will validate user's status
 * @param user user data
 */
function validateStatus(user) {
  let response = {};

  /*
   * User status check: return response as per user status
   */
  switch (user.status) {
    //////////////////////////////
    //          Active          //
    //////////////////////////////
    case "Active":
      response = { message: "Login successful", user: user };
      break;

    //////////////////////////////
    //          Inactive        //
    //////////////////////////////
    case "Inactive":
      response = { message: "User is inactive", user: undefined };
      break;

    //////////////////////////////
    //          Invited         //
    //////////////////////////////
    case "Invited":
      response = { message: "User is not activated yet", user: undefined };
      break;

    //////////////////////////////
    //          Blocked         //
    //////////////////////////////
    case "Blocked":
      response = { message: "User is blocked", user: undefined };
      break;

    //////////////////////////////
    //    Invalid Status        //
    //////////////////////////////
    default:
      response = { message: "User with invalid status", user: undefined };
      break;
  }

  /*
   * Return response
   */
  return response;
}

/**
 * This method will validate user's role
 * @param user user data
 */
function validateRole(user) {
  let response = {};

  if (user.role === "Admin") {
    response = { message: "Full Access granted", user: user };
  } else if (user.role === "Teacher") {
    response = { message: "Limited Access granted", user: user };
  } else if (user.role === "Student") {
    response = { message: "Access denied", user: undefined };
  }

  /*
   * Return response
   */
  return response;
}