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HTML

            
              
<h1 class="">Free Code Camp</h1>
<h2 class="">Local Weather <span class="hidden">for <span  id="wx-city">...</span></span></h2>
<h3 class="hidden" >
  <img id="wx-image" src="http://openweathermap.org/img/w/01d.png" alt="Sunny" />
  <span id="wx-temp"></span>
</h3>
  <br />
  <div class="wx-table hidden">
    <span class="wx-table-item" id='wx-description'>
    </span>
    <span class="wx-table-item">winds are
      <span id="wx-wind-direction"></span> at <span id="wx-wind-speed"></span>
    </span>
  </div>
<button id="toggleMetric">Click to show in <span class="imperial">metric</span><span class="metric">imperial</span> units</button>
!

CSS

            
              html, body {
  width: 100%;
  height: 100%;
  border: 0;
  margin: 0;
  padding: 0;
  position: relative;
  text-align: center;
}
body {
  background: #343436 url("https://raykendo.neocities.org/blank.png") no-repeat scroll 0% 0% / cover;
  color: #DDCA7E; 
  transition: background-image 0.4s ease-in-out;
}
/* background images based on weather */
.wx-bkgrnd-01d {
  background-image: url("https://raykendo.neocities.org/images/OpenWeatherMap/clearday.jpg");
}
.wx-bkgrnd-02d {
  background-image: url("https://raykendo.neocities.org/images/OpenWeatherMap/fewday.jpg");
}
.wx-bkgrnd-03d { 
  background-image: url("https://raykendo.neocities.org/images/OpenWeatherMap/scatteredday.jpg");
}
.wx-bkgrnd-04d {
  background-image: url("https://raykendo.neocities.org/images/OpenWeatherMap/brokenday.jpg");
}
.wx-bkgrnd-09d,
.wx-bkgrnd-10d {
  background-image:  url("https://raykendo.neocities.org/images/OpenWeatherMap/rainday.jpg");
}
.wx-bkgrnd-11d {
  background-image: url("https://raykendo.neocities.org/images/OpenWeatherMap/thunderstormday.jpg");
}
.wx-bkgrnd-13d {
  background-image: url("https://raykendo.neocities.org/images/OpenWeatherMap/snowday.jpg");
}
.wx-bkgrnd-50d {
  background-image:  url("https://raykendo.neocities.org/images/OpenWeatherMap/msitday.jpg");
}
.wx-bkgrnd-01n {
  background-image:  url("https://raykendo.neocities.org/images/OpenWeatherMap/clearnight.jpg");
}
.wx-bkgrnd-02n {
  background-image: url("https://raykendo.neocities.org/images/OpenWeatherMap/fewnight.jpg");
}
.wx-bkgrnd-03n {
  background-image: url("https://raykendo.neocities.org/images/OpenWeatherMap/scatterednight.jpg");
}
.wx-bkgrnd-04n {
  background-image: url("https://raykendo.neocities.org/images/OpenWeatherMap/brokennight.jpg");
}
.wx-bkgrnd-09n ,
.wx-bkgrnd-10n {
  background-image:  url("https://raykendo.neocities.org/images/OpenWeatherMap/rainnight.jpg");
} 
.wx-bkgrnd-11n {
  background-image:  url("https://raykendo.neocities.org/images/OpenWeatherMap/thunderstormnight.jpg");
}
.wx-bkgrnd-13n {
  background-image: url("https://raykendo.neocities.org/images/OpenWeatherMap/snownight.jpg");
}
.wx-bkgrnd-50n {
  background-image: url("https://raykendo.neocities.org/images/OpenWeatherMap/mistnight.jpg");
}
h1, h2, h3 {
  text-shadow: 2px 2px 3px #000;
}
h3 {
  display: inline;
  text-shadow: 1px 1px 2px #222;
}
img, h3 {
  vertical-align: middle;
}
.wx-table {
  text-align: center;
  margin-top: 10px;
}
.wx-table-item, button {
  background-color: rgba(255, 255, 255, 0.6);
  font-weight: bold;
  color: #222;
  padding: 0.7em 1em;
  border-radius: 0.5em;
  margin: 0.3em;
  border: 2px outset ;
}

.hidden {
  display: none;
}
.metric {
  display: none;
}
.showMetric .imperial {
  display: none;
}
.showMetric .metric {
  display: inline;
}

#toggleMetric {
  margin-top: 1.7em;
}
!

JS

            
              $(document).ready(function() {
  function useMetric(countryCode) {
    // if country code not in this list, use metric 
    return ['US', 'BS', 'BZ', 'KY', 'PW'].indexOf(countryCode) === -1;
  }

  function convertWindDir(angle) {
    var tweakedAngle = (angle + 22.5) % 360,
      directions = ['N', 'NE', 'E', 'SE', 'S', 'SW', 'W', 'NW'];
    return directions[Math.floor(tweakedAngle / 45)];
  }

  function convertWindMetersPerSec(speed) {
    return speed.toFixed(1) + " m/s";
  }

  function convertWindMPH(speed) {
    return (speed * 2.23694).toFixed(1) + " mph";
  }

  function convertToCelcius(kelvin) {
    var celcius = kelvin - 273.15;
    return celcius.toFixed(1) + "&deg;C";
  }

  function convertToFahrenheit(kelvin) {
    var celcius = kelvin - 273.15;
    var fahrenheit = celcius * 9 / 5 + 32;
    return fahrenheit.toFixed(1) + "&deg;F";
  }

  function updatePage(response) {
    $("#wx-city").text(response.name);
    $("#wx-image").prop("src", "http://openweathermap.org/img/w/" + response.weather[0].icon + ".png")
      .prop('alt', response.weather[0].description)
      .prop('title', response.weather[0].description);
    $("#wx-description").text(response.weather[0].description);
    $("#wx-wind-direction").text(convertWindDir(response.wind.deg));
    $("body").addClass("wx-bkgrnd-" + response.weather[0].icon);
	if (useMetric(response.sys.country)) {
      $("body").addClass("showMetric"); 
    }
	var tempHTML = "<span class='metric'>" + 
		convertToCelcius(response.main.temp) + 
		"</span><span class='imperial'>" + 
		convertToFahrenheit(response.main.temp) + "</span>";
	var windHTML = "<span class='metric'>" +
		convertWindMetersPerSec(response.wind.speed) +
		"</span><span class='imperial'>" +
		convertWindMPH(response.wind.speed) + 
		"</span>";
	$("#wx-temp").html(tempHTML);
	$("#wx-wind-speed").html(windHTML)
    $(".hidden").addClass("animated fadeIn").removeClass("hidden");
  }

  function getWeather(lat, long) {
    $.ajax({
      url: "http://api.openweathermap.org/data/2.5/weather",
      jsonp: "callback",
      dataType: "jsonp",
      data: {
        lat: lat,
        lon: long,
        appid: "2177df799b4d263ad5446bc242c3d7ff"
      },
      success: updatePage
    });
  }

  function geoSuccess(position) {
    if (position && position.coords) {
      getWeather(position.coords.latitude, position.coords.longitude);
    }
  }

  function geoFailure(err) {
    $.getJSON('http://ipinfo.io', 'jsonp').then(function(data) {
      var loc = data.loc.split(",");
      getWeather(loc[0], loc[1]);
    });
  }
  
  $('#toggleMetric').click(function () {
	$('body').toggleClass('showMetric');
  });
  
  if ("geolocation" in navigator) {
    navigator.geolocation.getCurrentPosition(geoSuccess, geoFailure);
  } else {
    geoFailure();
  }
});
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