błąd undefined

Question

Niestety muszę ponownie poprosić o pomoc.

const {Client, Intents, MessageEmbed} = require("discord.js");
const client = new Client({ intents: [Intents.FLAGS.GUILDS, Intents.FLAGS.GUILD_MESSAGES]});
const config = require("./config.json");
const fetch = require("node-fetch"); 
 
(async () => { 
  let result = await getPageContent();      
  console.log(result);
 
  const date = new Date();
  const year = date.getUTCFullYear();
  const month = date.getUTCMonth();
  const airport = result.substr(0,4);
  const time = result.substr(5,7);
  const day = time.substr(0,2);
  const hour = time.substr(2,2);
  const minute = time.substr(4,2);
  const wind = result.substr(13,8);
  const windDirect = wind.substr(0,3);
  const windSpeed = wind.substr(3,5);
  const vrbOrvisibility = result.substr(21,8);
  const actAirport = (`Airport: ${airport}`); 
  const obsTime = (`Time of observation: ${year}-${month}-${day} ${hour}:${minute}Z`);
  
  
  const calculatedVrbOrVisibility = calculateVrbOrVisibility(vrbOrvisibility);
  const calculatedWindDirect = calculateWindDirect(windDirect);
  console.log(wind);
  console.log(windDirect);
  console.log(windSpeed);
 
  
  client.login(config.token);
  console.log(actAirport);
  console.log(obsTime);
  console.log(calculatedVrbOrVisibility);
  console.log(calculatedWindDirect);
})();
 
function getPageContent() {
  return fetch('http://metar.vatsim.net/metar.php?id=epwr')
    .then(res => res.text())
    .then(text => {
      console.log(text);
      return text;
    })
}
 
function calculateWindDirect(windDirect) {
  if(windDirect == "VRB"){
    const windOrVrb = "Variable";
    return windOrVrb;
  }
  else{
    const windOrVrb = windDirect;
    return windOrVrb;    
  }
}
function calculateVrbOrVisibility(vrbOrvisibility, calculatedWindDirect, windSpeed){
  if(vrbOrvisibility.search("0V") != -1){
    const vrb = vrbOrvisibility.substr(0,7);
    const obsWind = `Wind: ${calculatedWindDirect} (${vrb}) at ${windSpeed}`;
    return obsWind;
  }
  else if(vrbOrvisibility.search("CAVOK") != -1){    
    const obsWind = `Wind: ${calculatedWindDirect} at ${windSpeed}`;
    return obsWind;
  }
  else{
    const obsWind = `Wind: ${calculatedWindDirect} at ${windSpeed}`;
    return obsWind;
  }
}

To mój kod i gry go odpalę obs wind wychodzi: Wind: undefined (090V150) at undefined i nie wiem z jakiego powodu. Pozdrawiam

Answer 1

Funkcja która generuje string "Wind: X at Y" przyjmuje 3 argumenty. Przy wywołaniu wysyłasz tylko 1. Stąd undefined.

Comments

Dzięki!