script.js

const url =　new URL("https://api.openweathermap.org/data/2.5/weather");
const params = {
  appid: "4b5774e9f3d2a07b84f0f2f88e486224",
  q: "London"
};
const qs = new URLSearchParams(params);

fetch(`${url}?${qs}`, {
  method: "GET",
})
  .then(response => response.json())
  .then(json => {
    const weather = json.weather[0].description;
    console.log(weather);

    const root = document.getElementById("root");
    root.innerHTML = `<h1>${weather}</h1>`;
  });