weather.js Example File

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 function requestWeatherData(cntr) {
     var xhr = new XMLHttpRequest;
     xhr.open("GET", "weather.json");
     xhr.onreadystatechange = function () {
         if (xhr.readyState === XMLHttpRequest.DONE) {
             cntr.weatherData = JSON.parse(xhr.responseText)
         }
     }
     xhr.send();
 }

 function getTimeHMS(utcTime) {
     var date = new Date(utcTime * 1000);
     // Hours part from the timestamp
     var hours = date.getHours();
     var ampm = Math.floor((hours / 12)) ? " PM" : " AM";
     hours = (hours % 12);

     // Minutes part from the timestamp
     var minutes = "0" + date.getMinutes();
     // Seconds part from the timestamp
     var seconds = "0" + date.getSeconds();

     // Will display time in 10:30:23 format
     return hours % 12 + ':' + minutes.substr(-2) + ':' + seconds.substr(-2)
             + ampm;
 }