some progress

script.js

@@ -0,0 +1,13 @@
+const defaultDuration = 15*60
+
+function Item(name/*, start, duration, end*/) {
+  this.name = name;
+  // this.start = start;
+  // this.ducation = duration;
+  // this.end = end;
+}
+
+function appendItem(item) {
+  let text = '<li><p>'+item.name+'</p></li>';
+  itemList.insertAdjacentHTML('beforeend', text);
+}