const msgLevel = ['log','error','alert'];

function msgConsole(level, message) {

  if (msgLevel.includes(level)) {

    if ((level == 'error')||(level == 'alert')) console.error(message);

    else console.log(message);

  }

}

function myLog(message) {

  msgConsole('log',message);

}

function myError(message) {

  msgConsole('error',message);

}

function myAlert(message) {

  msgConsole('alert',message);

}