app/static/block_weather.js


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export function updateWeather() {
  const city = document.getElementById("city").value;
  fetch(`/weather?city=${encodeURIComponent(city)}`)
    .then(res => res.json())
    .then(data => {
      if (!data) {
        document.getElementById("weather-summary").innerText = `Error, "${city}" city not found`;
        return
      }
        document.getElementById("weather-summary").innerText = data.summary;
        document.getElementById("weather-icon").src = data.icon_url;
    });
}