add wipe fs

js/view.js

@@ -1,10 +1,9 @@
 class View {
-  constructor() {
-  }
+  constructor() {}
 
   hloubka = 1;
 
-  showDirTree(dirtree) {
+  drawDirTree(dirtree) {
     var dirtreeul = document.getElementsByTagName("ul");
     var tag = document.createElement("li");
     var text = document.createTextNode(dirtree[0]);
@@ -18,16 +17,22 @@ class View {
       tag.parentElement.append(newul);
       for (let i = 1; i < dirtree.length; i++) {
         if (Array.isArray(dirtree[i])) {
-          this.showDirTree(dirtree[i]);
-
-        }else{
+          this.drawDirTree(dirtree[i]);
+        } else {
           var tag = document.createElement("li");
           var text = document.createTextNode(dirtree[i]);
-          tag.appendChild(text)
-          newul.appendChild(tag)
+          tag.appendChild(text);
+          newul.appendChild(tag);
         }
       }
       this.hloubka++;
     }
   }
+
+  removeDirTree() {
+    let mainul = document.getElementsByTagName("ul")[0];
+    if (mainul !== undefined) {
+      mainul.firstChild.remove();
+    }
+  }
 }