esercizi js

2014-11-30 18:46:24 +01:00
parent b2e9b46742
commit c30036a3bc
11 changed files with 597 additions and 27 deletions
--- a/js_20.html
+++ 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>