test

hw2/weatherGenerator/files/css/styles.css

@@ -1,5 +1,5 @@
 .weather {
-  background: #d6eeff;
+  background: linear-gradient(to top, #d6eeff, #a5d9ff);
   display: inline-block;
   text-align: center;
   width: 100%;

hw2/weatherGenerator/files/js/index.js

@@ -19,6 +19,7 @@ function get(url){
     xhr.send();
   });
 }
+
 function show(obj){
   var weather = obj.query.results.channel.item.description;
   var resWeather = weather.replace(/href|CDATA|[\!]|[\[]|[\]]/g,"");
@@ -29,41 +30,55 @@ function show(obj){
 }
 
 function* myGenerator(){
-    var object = yield get('https://raw.githubusercontent.com/David-Haim/CountriesToCitiesJSON/master/countriesToCities.json');
-    var keys = Object.keys(object);
-    var select = document.createElement("select");
-    for (var i = 0; i < keys.length; i++) {
-        var option = document.createElement("option");
-        option.innerHTML = keys[i];
-        option.value = keys[i];
-        select.appendChild(option);
-    }
-
-    select.onchange = function(){
-      run(onchange1);
-    }
-    function* onchange1(e){
-        var select = document.createElement("select");
-        for (var i = 0; i < object[document.getElementById("main").value].length; i++) {
-            var option = document.createElement("option")
-            option.innerHTML = object[document.getElementById("main").value][i];
-            select.appendChild(option);
-        }
-        if(selects.children.length > 1){
-            selects.replaceChild(select, document.getElementById("main").nextElementSibling);
-        }
-        else
-            selects.appendChild(select);
-          var obj = yield get("https://query.yahooapis.com/v1/public/yql?" + 'q=' + encodeURIComponent("select * from weather.forecast where woeid in (select woeid from geo.places(1) where text=\'" + select.value + "\') and u='c'") + '&format=json');
-          show(obj);
-        select.onchange = function(){
-          get("https://query.yahooapis.com/v1/public/yql?" + 'q=' + encodeURIComponent("select * from weather.forecast where woeid in (select woeid from geo.places(1) where text=\'" + this.value + "\') and u='c'") + '&format=json').then(function(obj){
-            show(obj);
-          })
-        }
+    try{
+      var object = yield get('https://raw.githubusercontent.com/David-Haim/CountriesToCitiesJSON/master/countriesToCities.json');
+      var keys = Object.keys(object);
+      var select = document.createElement("select");
+      for (var i = 0; i < keys.length; i++) {
+          var option = document.createElement("option");
+          option.innerHTML = keys[i];
+          option.value = keys[i];
+          select.appendChild(option);
+      }
+      select.onchange = function(){
+        run(onchange1);
+      }
+      function* onchange1(e){
+          try{
+            var mainSelect = document.getElementById("main")
+            var select = document.createElement("select");
+            for (var i = 0; i < object[mainSelect.value].length; i++) {
+                var option = document.createElement("option")
+                option.innerHTML = object[mainSelect.value][i];
+                select.appendChild(option);
+            }
+            if(selects.children.length > 1){
+                selects.replaceChild(select,mainSelect.nextElementSibling);
+            }
+            else
+                selects.appendChild(select);
+              var obj = yield get("https://query.yahooapis.com/v1/public/yql?" + 'q=' + encodeURIComponent("select * from weather.forecast where woeid in (select woeid from geo.places(1) where text=\'" + select.value + "\') and u='c'") + '&format=json');
+              show(obj);
+            select.onchange = function(){
+              run(onchange2);
+            }
+            function* onchange2(){
+              try{
+                var obj2 = yield get("https://query.yahooapis.com/v1/public/yql?" + 'q=' + encodeURIComponent("select * from weather.forecast where woeid in (select woeid from geo.places(1) where text=\'" + select.value + "\') and u='c'") + '&format=json');
+                show(obj2);
+              }catch(error){
+                throw error;
+              }
+            }
+          }catch(error){
+            throw error;
+          }
+      }
+      selects.appendChild(select);
+      select.id = "main"
+    }catch(error){
+      throw error;
     }
-    selects.appendChild(select);
-    select.id = "main"
 
 }
 
@@ -72,10 +87,10 @@ function run(g){
   function handle(result){
       if(!result.done){
         result.value.then(function(data){
-          return handle(gen.next(data));
+          handle(gen.next(data));
         })
       }
   }
-  return handle(gen.next());
+  handle(gen.next());
 }
 run(myGenerator);

hw2/weatherGenerator/weatherGenerator.md

@@ -1 +1 @@
-http://homeworkreactjs.pavelefimen95.fe.a-level.com.ua/hw2/weatherGenerator/files
+##### http://homeworkreactjs.pavelefimen95.fe.a-level.com.ua/hw2/weatherGenerator/files