From c30036a3bc2db2d1fef177a3665216abb1d849a6 Mon Sep 17 00:00:00 2001
From: Giovanni Di Grezia <xgiovio@gmail.com>
Date: Sun, 30 Nov 2014 18:46:24 +0100
Subject: [PATCH] esercizi js

---
 .idea/workspace.xml | 176 +++++++++++++++++++++++++++++++++++++-------
 js2.html            |  73 ++++++++++++++++++
 js3.html            |  62 ++++++++++++++++
 js_1.html           |  22 ++++++
 js_10.html          |  49 ++++++++++++
 js_2.html           |  28 +++++++
 js_20.html          |  53 +++++++++++++
 js_3.html           |  31 ++++++++
 js_7.html           |  33 +++++++++
 js_8.html           |  35 +++++++++
 js_9.html           |  62 ++++++++++++++++
 11 files changed, 597 insertions(+), 27 deletions(-)
 create mode 100644 js2.html
 create mode 100644 js3.html
 create mode 100644 js_1.html
 create mode 100644 js_10.html
 create mode 100644 js_2.html
 create mode 100644 js_20.html
 create mode 100644 js_3.html
 create mode 100644 js_7.html
 create mode 100644 js_8.html
 create mode 100644 js_9.html

diff --git a/.idea/workspace.xml b/.idea/workspace.xml
index bf33de3..4014acb 100644
--- a/.idea/workspace.xml
+++ b/.idea/workspace.xml
@@ -1,7 +1,9 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project version="4">
   <component name="ChangeListManager">
-    <list default="true" id="f405bcb8-0de2-4a3f-bdf4-b8ba34c0c82e" name="Default" comment="" />
+    <list default="true" id="f405bcb8-0de2-4a3f-bdf4-b8ba34c0c82e" name="Default" comment="">
+      <change type="MODIFICATION" beforePath="$PROJECT_DIR$/.idea/workspace.xml" afterPath="$PROJECT_DIR$/.idea/workspace.xml" />
+    </list>
     <ignored path="unisa 14-15 tsw.iws" />
     <ignored path=".idea/workspace.xml" />
     <option name="EXCLUDED_CONVERTED_TO_IGNORED" value="true" />
@@ -24,12 +26,15 @@
   </component>
   <component name="FileEditorManager">
     <leaf>
-      <file leaf-file-name="js1.html" pinned="false" current-in-tab="true">
-        <entry file="file://$PROJECT_DIR$/js1.html">
+      <file leaf-file-name="js_20.html" pinned="false" current-in-tab="true">
+        <entry file="file://$PROJECT_DIR$/js_20.html">
           <provider selected="true" editor-type-id="text-editor">
-            <state vertical-scroll-proportion="1.5925926" vertical-offset="0" max-vertical-offset="2465">
-              <caret line="86" column="9" selection-start-line="86" selection-start-column="9" selection-end-line="86" selection-end-column="9" />
-              <folding />
+            <state vertical-scroll-proportion="0.33333334" vertical-offset="0" max-vertical-offset="918">
+              <caret line="18" column="24" selection-start-line="18" selection-start-column="24" selection-end-line="18" selection-end-column="24" />
+              <folding>
+                <element signature="e#245#394#0" expanded="false" />
+                <element signature="e#510#663#0" expanded="false" />
+              </folding>
             </state>
           </provider>
         </entry>
@@ -43,6 +48,16 @@
     <option name="CHANGED_PATHS">
       <list>
         <option value="$PROJECT_DIR$/js1.html" />
+        <option value="$PROJECT_DIR$/js2.html" />
+        <option value="$PROJECT_DIR$/js3.html" />
+        <option value="$PROJECT_DIR$/js_1.html" />
+        <option value="$PROJECT_DIR$/js_2.html" />
+        <option value="$PROJECT_DIR$/js_3.html" />
+        <option value="$PROJECT_DIR$/js_7.html" />
+        <option value="$PROJECT_DIR$/js_8.html" />
+        <option value="$PROJECT_DIR$/js_9.html" />
+        <option value="$PROJECT_DIR$/js_10.html" />
+        <option value="$PROJECT_DIR$/js_20.html" />
       </list>
     </option>
   </component>
@@ -116,7 +131,7 @@
   </component>
   <component name="PropertiesComponent">
     <property name="WebServerToolWindowFactoryState" value="false" />
-    <property name="last_opened_file_path" value="$PROJECT_DIR$/js1.html" />
+    <property name="last_opened_file_path" value="$PROJECT_DIR$/js3.html" />
     <property name="HbShouldOpenHtmlAsHb" value="" />
     <property name="recentsLimit" value="5" />
     <property name="options.lastSelected" value="configurable.group.appearance" />
@@ -126,11 +141,20 @@
     <property name="DefaultHtmlFileTemplate" value="Html5" />
     <property name="FullScreen" value="false" />
   </component>
+  <component name="RecentsManager">
+    <key name="CopyFile.RECENT_KEYS">
+      <recent name="F:\Codes\Html\unisa 14-15 tsw" />
+    </key>
+  </component>
   <component name="RunManager" selected="JavaScript Debug.test ff">
+    <configuration default="true" type="DartCommandLineRunConfigurationType" factoryName="Dart Command Line Application">
+      <method />
+    </configuration>
     <configuration default="true" type="DartUnitRunConfigurationType" factoryName="DartUnit">
       <method />
     </configuration>
-    <configuration default="true" type="DartCommandLineRunConfigurationType" factoryName="Dart Command Line Application">
+    <configuration default="true" type="JavaScriptTestRunnerKarma" factoryName="Karma" config-file="">
+      <envs />
       <method />
     </configuration>
     <configuration default="true" type="JSTestDriver:ConfigurationType" factoryName="JsTestDriver">
@@ -140,10 +164,6 @@
       <setting name="preferredDebugBrowser" value="Chrome" />
       <method />
     </configuration>
-    <configuration default="true" type="JavaScriptTestRunnerKarma" factoryName="Karma" config-file="">
-      <envs />
-      <method />
-    </configuration>
     <configuration default="true" type="JavascriptDebugType" factoryName="JavaScript Debug">
       <method />
     </configuration>
@@ -157,9 +177,14 @@
       <method />
     </configuration>
     <configuration default="true" type="js.build_tools.gulp" factoryName="Gulp.js">
+      <node-options />
+      <gulpfile />
+      <tasks />
+      <pass-parent-envs>true</pass-parent-envs>
+      <envs />
       <method />
     </configuration>
-    <configuration default="false" name="test ff" type="JavascriptDebugType" factoryName="JavaScript Debug" engineId="a7bb68e0-33c0-4d6f-a81a-aac1fdb870c8" uri="http://localhost:63342/unisa 14-15 tsw/js1.html">
+    <configuration default="false" name="test ff" type="JavascriptDebugType" factoryName="JavaScript Debug" engineId="a7bb68e0-33c0-4d6f-a81a-aac1fdb870c8" uri="http://localhost:63342/unisa 14-15 tsw/js_1.html">
       <RunnerSettings RunnerId="JavascriptDebugRunner" />
       <ConfigurationWrapper RunnerId="JavascriptDebugRunner" />
       <method />
@@ -185,24 +210,24 @@
     <frame x="-8" y="-8" width="1936" height="1096" extended-state="6" />
     <editor active="false" />
     <layout>
-      <window_info id="Changes" active="false" anchor="bottom" auto_hide="false" internal_type="DOCKED" type="DOCKED" visible="false" weight="0.33" sideWeight="0.5" order="-1" side_tool="false" content_ui="tabs" />
-      <window_info id="Terminal" active="false" anchor="bottom" auto_hide="false" internal_type="DOCKED" type="DOCKED" visible="false" weight="0.33" sideWeight="0.5" order="-1" side_tool="false" content_ui="tabs" />
+      <window_info id="Changes" active="false" anchor="bottom" auto_hide="false" internal_type="DOCKED" type="DOCKED" visible="false" weight="0.33" sideWeight="0.5" order="7" side_tool="false" content_ui="tabs" />
+      <window_info id="Terminal" active="false" anchor="bottom" auto_hide="false" internal_type="DOCKED" type="DOCKED" visible="false" weight="0.33" sideWeight="0.5" order="7" side_tool="false" content_ui="tabs" />
       <window_info id="TODO" active="false" anchor="bottom" auto_hide="false" internal_type="DOCKED" type="DOCKED" visible="false" weight="0.33" sideWeight="0.5" order="6" side_tool="false" content_ui="tabs" />
       <window_info id="Structure" active="false" anchor="left" auto_hide="false" internal_type="DOCKED" type="DOCKED" visible="false" weight="0.25" sideWeight="0.5" order="1" side_tool="false" content_ui="tabs" />
-      <window_info id="Application Servers" active="false" anchor="bottom" auto_hide="false" internal_type="DOCKED" type="DOCKED" visible="false" weight="0.33" sideWeight="0.5" order="-1" side_tool="false" content_ui="tabs" />
+      <window_info id="Application Servers" active="false" anchor="bottom" auto_hide="false" internal_type="DOCKED" type="DOCKED" visible="false" weight="0.33" sideWeight="0.5" order="7" side_tool="false" content_ui="tabs" />
       <window_info id="Project" active="false" anchor="left" auto_hide="false" internal_type="DOCKED" type="DOCKED" visible="true" weight="0.25" sideWeight="0.5" order="0" side_tool="false" content_ui="combo" />
-      <window_info id="Debug" active="false" anchor="bottom" auto_hide="false" internal_type="DOCKED" type="DOCKED" visible="false" weight="0.4" sideWeight="0.5" order="3" side_tool="false" content_ui="tabs" />
-      <window_info id="Run" active="false" anchor="bottom" auto_hide="false" internal_type="DOCKED" type="DOCKED" visible="false" weight="0.33" sideWeight="0.5" order="2" side_tool="false" content_ui="tabs" />
-      <window_info id="Favorites" active="false" anchor="left" auto_hide="false" internal_type="DOCKED" type="DOCKED" visible="false" weight="0.33" sideWeight="0.5" order="-1" side_tool="true" content_ui="tabs" />
-      <window_info id="Event Log" active="false" anchor="bottom" auto_hide="false" internal_type="DOCKED" type="DOCKED" visible="false" weight="0.33" sideWeight="0.5" order="-1" side_tool="true" content_ui="tabs" />
-      <window_info id="Version Control" active="false" anchor="bottom" auto_hide="false" internal_type="DOCKED" type="DOCKED" visible="false" weight="0.33" sideWeight="0.5" order="-1" side_tool="false" content_ui="tabs" />
+      <window_info id="Favorites" active="false" anchor="left" auto_hide="false" internal_type="DOCKED" type="DOCKED" visible="false" weight="0.33" sideWeight="0.5" order="2" side_tool="true" content_ui="tabs" />
+      <window_info id="Event Log" active="false" anchor="bottom" auto_hide="false" internal_type="DOCKED" type="DOCKED" visible="false" weight="0.33" sideWeight="0.5" order="7" side_tool="true" content_ui="tabs" />
+      <window_info id="Version Control" active="false" anchor="bottom" auto_hide="false" internal_type="DOCKED" type="DOCKED" visible="false" weight="0.33" sideWeight="0.5" order="7" side_tool="false" content_ui="tabs" />
       <window_info id="Cvs" active="false" anchor="bottom" auto_hide="false" internal_type="DOCKED" type="DOCKED" visible="false" weight="0.25" sideWeight="0.5" order="4" side_tool="false" content_ui="tabs" />
       <window_info id="Message" active="false" anchor="bottom" auto_hide="false" internal_type="DOCKED" type="DOCKED" visible="false" weight="0.33" sideWeight="0.5" order="0" side_tool="false" content_ui="tabs" />
       <window_info id="Ant Build" active="false" anchor="right" auto_hide="false" internal_type="DOCKED" type="DOCKED" visible="false" weight="0.25" sideWeight="0.5" order="1" side_tool="false" content_ui="tabs" />
       <window_info id="Find" active="false" anchor="bottom" auto_hide="false" internal_type="DOCKED" type="DOCKED" visible="false" weight="0.33" sideWeight="0.5" order="1" side_tool="false" content_ui="tabs" />
+      <window_info id="Debug" active="false" anchor="bottom" auto_hide="false" internal_type="DOCKED" type="DOCKED" visible="false" weight="0.4" sideWeight="0.5" order="3" side_tool="false" content_ui="tabs" />
       <window_info id="Commander" active="false" anchor="right" auto_hide="false" internal_type="SLIDING" type="SLIDING" visible="false" weight="0.4" sideWeight="0.5" order="0" side_tool="false" content_ui="tabs" />
       <window_info id="Hierarchy" active="false" anchor="right" auto_hide="false" internal_type="DOCKED" type="DOCKED" visible="false" weight="0.25" sideWeight="0.5" order="2" side_tool="false" content_ui="combo" />
       <window_info id="Inspection" active="false" anchor="bottom" auto_hide="false" internal_type="DOCKED" type="DOCKED" visible="false" weight="0.4" sideWeight="0.5" order="5" side_tool="false" content_ui="tabs" />
+      <window_info id="Run" active="false" anchor="bottom" auto_hide="false" internal_type="DOCKED" type="DOCKED" visible="false" weight="0.33" sideWeight="0.5" order="2" side_tool="false" content_ui="tabs" />
     </layout>
   </component>
   <component name="Vcs.Log.UiProperties">
@@ -226,19 +251,116 @@
     <watches-manager />
   </component>
   <component name="editorHistoryManager">
-    <entry file="file://$PROJECT_DIR$/css1.html">
+    <entry file="file://$PROJECT_DIR$/js_20.html">
       <provider selected="true" editor-type-id="text-editor">
-        <state vertical-scroll-proportion="0.0" vertical-offset="0" max-vertical-offset="944">
+        <state vertical-scroll-proportion="0.0" vertical-offset="0" max-vertical-offset="850">
+          <caret line="0" column="0" selection-start-line="0" selection-start-column="0" selection-end-line="0" selection-end-column="0" />
+          <folding>
+            <element signature="e#245#394#0" expanded="false" />
+            <element signature="e#510#663#0" expanded="false" />
+          </folding>
+        </state>
+      </provider>
+    </entry>
+    <entry file="file://$PROJECT_DIR$/js3.html">
+      <provider selected="true" editor-type-id="text-editor">
+        <state vertical-scroll-proportion="0.0" vertical-offset="0" max-vertical-offset="1139">
           <caret line="0" column="0" selection-start-line="0" selection-start-column="0" selection-end-line="0" selection-end-column="0" />
-          <folding />
         </state>
       </provider>
     </entry>
     <entry file="file://$PROJECT_DIR$/js1.html">
       <provider selected="true" editor-type-id="text-editor">
-        <state vertical-scroll-proportion="1.5925926" vertical-offset="0" max-vertical-offset="2465">
-          <caret line="86" column="9" selection-start-line="86" selection-start-column="9" selection-end-line="86" selection-end-column="9" />
-          <folding />
+        <state vertical-scroll-proportion="0.0" vertical-offset="0" max-vertical-offset="2465">
+          <caret line="0" column="0" selection-start-line="0" selection-start-column="0" selection-end-line="0" selection-end-column="0" />
+        </state>
+      </provider>
+    </entry>
+    <entry file="file://$PROJECT_DIR$/css1.html">
+      <provider selected="true" editor-type-id="text-editor">
+        <state vertical-scroll-proportion="0.0" vertical-offset="0" max-vertical-offset="944">
+          <caret line="0" column="0" selection-start-line="0" selection-start-column="0" selection-end-line="0" selection-end-column="0" />
+        </state>
+      </provider>
+    </entry>
+    <entry file="file://$PROJECT_DIR$/js1.html">
+      <provider selected="true" editor-type-id="text-editor">
+        <state vertical-scroll-proportion="0.25925925" vertical-offset="1462" max-vertical-offset="2465">
+          <caret line="100" column="0" selection-start-line="100" selection-start-column="0" selection-end-line="100" selection-end-column="0" />
+        </state>
+      </provider>
+    </entry>
+    <entry file="file://$PROJECT_DIR$/js2.html">
+      <provider selected="true" editor-type-id="text-editor">
+        <state vertical-scroll-proportion="0.4814815" vertical-offset="408" max-vertical-offset="1326">
+          <caret line="50" column="30" selection-start-line="50" selection-start-column="30" selection-end-line="50" selection-end-column="30" />
+        </state>
+      </provider>
+    </entry>
+    <entry file="file://$PROJECT_DIR$/js3.html">
+      <provider selected="true" editor-type-id="text-editor">
+        <state vertical-scroll-proportion="0.34313726" vertical-offset="195" max-vertical-offset="1139">
+          <caret line="30" column="0" selection-start-line="30" selection-start-column="0" selection-end-line="30" selection-end-column="0" />
+        </state>
+      </provider>
+    </entry>
+    <entry file="file://$PROJECT_DIR$/js_1.html">
+      <provider selected="true" editor-type-id="text-editor">
+        <state vertical-scroll-proportion="0.0" vertical-offset="0" max-vertical-offset="918">
+          <caret line="0" column="0" selection-start-line="0" selection-start-column="0" selection-end-line="0" selection-end-column="0" />
+        </state>
+      </provider>
+    </entry>
+    <entry file="file://$PROJECT_DIR$/js_2.html">
+      <provider selected="true" editor-type-id="text-editor">
+        <state vertical-scroll-proportion="0.0" vertical-offset="0" max-vertical-offset="918">
+          <caret line="0" column="0" selection-start-line="0" selection-start-column="0" selection-end-line="0" selection-end-column="0" />
+        </state>
+      </provider>
+    </entry>
+    <entry file="file://$PROJECT_DIR$/js_3.html">
+      <provider selected="true" editor-type-id="text-editor">
+        <state vertical-scroll-proportion="0.0" vertical-offset="0" max-vertical-offset="918">
+          <caret line="0" column="0" selection-start-line="0" selection-start-column="0" selection-end-line="0" selection-end-column="0" />
+        </state>
+      </provider>
+    </entry>
+    <entry file="file://$PROJECT_DIR$/js_7.html">
+      <provider selected="true" editor-type-id="text-editor">
+        <state vertical-scroll-proportion="0.0" vertical-offset="0" max-vertical-offset="918">
+          <caret line="0" column="0" selection-start-line="0" selection-start-column="0" selection-end-line="0" selection-end-column="0" />
+        </state>
+      </provider>
+    </entry>
+    <entry file="file://$PROJECT_DIR$/js_8.html">
+      <provider selected="true" editor-type-id="text-editor">
+        <state vertical-scroll-proportion="0.0" vertical-offset="0" max-vertical-offset="918">
+          <caret line="0" column="0" selection-start-line="0" selection-start-column="0" selection-end-line="0" selection-end-column="0" />
+        </state>
+      </provider>
+    </entry>
+    <entry file="file://$PROJECT_DIR$/js_9.html">
+      <provider selected="true" editor-type-id="text-editor">
+        <state vertical-scroll-proportion="0.0" vertical-offset="0" max-vertical-offset="1139">
+          <caret line="0" column="0" selection-start-line="0" selection-start-column="0" selection-end-line="0" selection-end-column="0" />
+        </state>
+      </provider>
+    </entry>
+    <entry file="file://$PROJECT_DIR$/js_10.html">
+      <provider selected="true" editor-type-id="text-editor">
+        <state vertical-scroll-proportion="-11.769231" vertical-offset="0" max-vertical-offset="918">
+          <caret line="18" column="26" selection-start-line="18" selection-start-column="26" selection-end-line="18" selection-end-column="26" />
+        </state>
+      </provider>
+    </entry>
+    <entry file="file://$PROJECT_DIR$/js_20.html">
+      <provider selected="true" editor-type-id="text-editor">
+        <state vertical-scroll-proportion="0.33333334" vertical-offset="0" max-vertical-offset="918">
+          <caret line="18" column="24" selection-start-line="18" selection-start-column="24" selection-end-line="18" selection-end-column="24" />
+          <folding>
+            <element signature="e#245#394#0" expanded="false" />
+            <element signature="e#510#663#0" expanded="false" />
+          </folding>
         </state>
       </provider>
     </entry>
diff --git a/js2.html b/js2.html
new file mode 100644
index 0000000..ef2ac62
--- /dev/null
+++ b/js2.html
@@ -0,0 +1,73 @@
+<!DOCTYPE html>
+<html>
+<head lang="en">
+    <meta charset="UTF-8">
+    <title></title>
+</head>
+<body>
+
+<script>
+
+    var a = [1,2,3,4,5];
+
+    for(i=0;i< a.length;i++){
+        document.writeln(a[i]);
+    }
+
+    (function () {document.writeln("ciao")})();
+
+    function set_property (nome,cognome){
+       return nome + cognome;
+    }
+
+    set_property_gino_paolo=set_property.bind(null,"gino","paolo");
+    document.writeln(set_property_gino_paolo());
+
+
+
+    oggetto = {nome:null,cognome:null,makealert:function(){alert("yoo")}};
+    function set_n_c (nome,cognome) {
+        this.nome = nome;
+        this.cognome = cognome;
+        //this.makealert();
+    }
+
+    (set_n_c.bind(oggetto,"mario","rossi"))();
+
+    document.writeln(oggetto.nome);
+
+
+
+
+    var global="glo";
+    function out(){
+        var global ="loac";
+        function int(){
+            return global;
+        }
+        return int;
+    }
+
+    document.writeln(out()());
+
+
+
+
+    var global="glo";
+    function out2(){
+        var global ="loac";
+        return (new Function ("return global;"));
+    }
+
+    document.writeln(out2()());
+
+
+
+
+
+</script>
+
+
+
+</body>
+</html>
\ No newline at end of file
diff --git a/js3.html b/js3.html
new file mode 100644
index 0000000..df783aa
--- /dev/null
+++ b/js3.html
@@ -0,0 +1,62 @@
+<!DOCTYPE html>
+<html>
+<head lang="en">
+    <meta charset="UTF-8">
+    <title></title>
+</head>
+<body>
+
+<script>
+var a = 5;
+
+function f(){return a;}
+
+document.writeln(f());
+
+var a = 10;
+
+document.writeln(f());
+
+
+
+
+ oggetto = {
+     nome:"n",
+     cognome:"c"
+ }
+
+    if ("nome" in oggetto)
+        document.writeln(oggetto.nome);
+
+
+    f2.counter=0;
+    function f2(){
+        document.writeln(arguments.length);
+        document.writeln(arguments.callee.length);
+        document.writeln(arguments.callee.counter);
+        document.writeln(f2.counter);
+
+        if (f2.counter < 100){
+            f2.counter++;
+            document.writeln("recursive " + f2.counter);
+            f2();
+        }
+
+
+    }
+
+    f2("a","b","c","d");
+
+
+
+
+
+</script>
+
+
+
+
+
+
+</body>
+</html>
\ No newline at end of file
diff --git a/js_1.html b/js_1.html
new file mode 100644
index 0000000..e2b9658
--- /dev/null
+++ b/js_1.html
@@ -0,0 +1,22 @@
+<!DOCTYPE html>
+<html>
+<head lang="en">
+    <meta charset="UTF-8">
+    <title></title>
+</head>
+<body>
+
+<script>
+    rit = confirm("Accettare il contratto?");
+    if (rit)
+        document.writeln("Accettato");
+    else
+        document.writeln("Rifiutato");
+
+
+</script>
+
+
+
+</body>
+</html>
\ No newline at end of file
diff --git a/js_10.html b/js_10.html
new file mode 100644
index 0000000..8b343d0
--- /dev/null
+++ b/js_10.html
@@ -0,0 +1,49 @@
+<!DOCTYPE html>
+<html>
+<head lang="en">
+    <meta charset="UTF-8">
+    <title></title>
+
+
+
+
+</head>
+<body>
+
+        <script>
+            sum=[];
+            i="beg";
+            while (true) {
+                i = prompt("Insert n or end");
+                if (i == "end")
+                    break;
+                for (;!i || isNaN(i) ;)
+                    i= prompt("Err.Insert n");
+                sum.push(parseFloat(i));
+            }
+
+            tot=0;
+            for (i=0;i<sum.length;i++){
+                tot = tot + sum[i];
+            }
+
+
+            document.writeln("<table>");
+
+            for (i=0;i<sum.length;i++){
+                document.writeln("<tr><td>" + sum[i] +"</td></tr>");
+            }
+            document.writeln("<tr><td>" + tot / sum.length +"</td></tr>");
+
+            document.writeln("</table>");
+
+        </script>
+
+
+
+
+
+
+
+</body>
+</html>
\ No newline at end of file
diff --git a/js_2.html b/js_2.html
new file mode 100644
index 0000000..a144d82
--- /dev/null
+++ b/js_2.html
@@ -0,0 +1,28 @@
+<!DOCTYPE html>
+<html>
+<head lang="en">
+    <meta charset="UTF-8">
+    <title></title>
+</head>
+<body>
+
+<script>
+
+
+    function f (n) {
+            var base = n-1;
+        if (n > 1)
+            return n * base * f( n - 2);
+        else
+            return 1;
+    }
+
+    for (i = 1 ; i< 10 ;i++)
+        document.writeln(f(i) + "<br>");
+
+</script>
+
+
+
+</body>
+</html>
\ No newline at end of file
diff --git a/js_20.html b/js_20.html
new file mode 100644
index 0000000..73f94af
--- /dev/null
+++ b/js_20.html
@@ -0,0 +1,53 @@
+<!DOCTYPE html>
+<html>
+<head lang="en">
+    <meta charset="UTF-8">
+    <title></title>
+
+
+
+
+</head>
+<body>
+
+        <script>
+
+            function costruisci (input){
+
+                if (input == "somma"){
+
+                    f = function (a,b){
+                        if (!isNaN(a) && !isNaN(b))
+                        return a + b;
+                        return null
+                    }
+                    return f;
+
+
+                } else if (input == "molt"){
+                    f = function (a,b){
+                        if (!isNaN(a) && !isNaN(b))
+                            return a * b;
+                        return null
+                    }
+                    return f;
+
+                }else
+                return null;
+            }
+
+            document.writeln((costruisci("somma"))(10,20));
+            document.writeln((costruisci("molt"))(10,20));
+
+
+
+        </script>
+
+
+
+
+
+
+
+</body>
+</html>
\ No newline at end of file
diff --git a/js_3.html b/js_3.html
new file mode 100644
index 0000000..c4b7293
--- /dev/null
+++ b/js_3.html
@@ -0,0 +1,31 @@
+<!DOCTYPE html>
+<html>
+<head lang="en">
+    <meta charset="UTF-8">
+    <title></title>
+</head>
+<body>
+
+<script>
+
+    function f (n) {
+        var base = n-1;
+        if (n > 1)
+            return n * base * f( n - 2);
+        else
+            return 1;
+    }
+
+    value = prompt("Inserire numero tra 1 e 15");
+
+    if ( value &&  !isNaN(value) && value>=1 && value<=15 )
+        document.writeln(f(value));
+    else
+        alert("Error");
+
+
+</script>
+
+
+</body>
+</html>
\ No newline at end of file
diff --git a/js_7.html b/js_7.html
new file mode 100644
index 0000000..8901663
--- /dev/null
+++ b/js_7.html
@@ -0,0 +1,33 @@
+<!DOCTYPE html>
+<html>
+<head lang="en">
+    <meta charset="UTF-8">
+    <title></title>
+</head>
+<body>
+
+<script>
+
+    nome = prompt("Nome");
+    cognome = prompt("Cognome");
+
+</script>
+
+
+<h1> Campionato di Pallastrada</h1>
+
+<p>Classifica</p>
+
+<span id="message"></span>
+
+
+<script>
+
+    document.getElementById("message").innerHTML = "Ciao " + nome + " " + cognome +
+            " ci vediamo fra 4 anni";
+
+</script>
+
+
+</body>
+</html>
\ No newline at end of file
diff --git a/js_8.html b/js_8.html
new file mode 100644
index 0000000..4cef637
--- /dev/null
+++ b/js_8.html
@@ -0,0 +1,35 @@
+<!DOCTYPE html>
+<html>
+<head lang="en">
+    <meta charset="UTF-8">
+    <title></title>
+</head>
+<body>
+
+<script>
+
+    s = prompt("Sito da visitare: 1 - 2 - 3 - 4");
+    l = null;
+    if (s && !isNaN(s)){
+        switch (s){
+            case "1": l="http://sito1.com";break;
+            case "2": l="http://sito2.com";break;
+            case "3": l="http://sito3.com";break;
+            case "4": l="http://sito4.com";break;
+        }
+        if (l)
+            location.href=l;
+    }
+
+
+</script>
+
+
+
+
+
+
+
+
+</body>
+</html>
\ No newline at end of file
diff --git a/js_9.html b/js_9.html
new file mode 100644
index 0000000..fc9be11
--- /dev/null
+++ b/js_9.html
@@ -0,0 +1,62 @@
+<!DOCTYPE html>
+<html>
+<head lang="en">
+    <meta charset="UTF-8">
+    <title></title>
+
+    <script>
+
+        input = prompt ("Colore titolo, testo, sfondo e grandezza font");
+        var res = input.split(" ");
+        if (res[0] == "*")
+            document.writeln("<link rel=\"stylesheet\" type=\"text/css\" href=\"mystyle.css\">");
+        else {
+            document.writeln("<style>");
+
+            if (res[0]==res[1]  || res[0]==res[2] || res[1]==res[2] ){
+                res[0]="green";
+                res[1]="blue";
+                res[2]="red";
+            }
+
+
+            document.writeln("h1,h2,h3,h4,h5,h6 {color:" + res[0] + ";font-size:" + res[3] + "}");
+            document.writeln("body {background-color:" + res[2] + "}");
+            document.writeln("p {color:" + res[1] + "}");
+
+            document.writeln("</style>");
+        }
+
+
+        </script>
+
+
+</head>
+<body>
+
+
+<h1> Titolo 1</h1>
+<h2> Titolo 2</h2>
+<h3> Titolo 3</h3>
+<p>Ehi</p>
+
+
+
+<script>
+
+    h1s = document.getElementsByTagName("h1");
+    for (i = 0 ;i<h1s.length; i++)
+        h1s[i].style="font-size:3em;font-weight:bold";
+    h2s = document.getElementsByTagName("h2");
+    for (i = 0 ;i<h2s.length; i++)
+        h2s[i].style="font-size:1em";
+    h3s = document.getElementsByTagName("h3");
+    for (i = 0 ;i<h3s.length; i++)
+        h3s[i].style="font-size:1em;font-weight:bold;font-style=italic";
+
+</script>
+
+
+
+</body>
+</html>
\ No newline at end of file