some samples on js

2014-11-23 22:06:08 +01:00
parent be34f479d5
commit 2b9b60c413
9 changed files with 422 additions and 0 deletions
--- a/js1.html
+++ b/js1.html
@@ -0,0 +1,140 @@
+<!DOCTYPE html>
+<html>
+<head lang="en">
+    <meta charset="UTF-8">
+    <title></title>
+</head>
+<body>
+
+<script>
+
+    try {
+
+        var a = 1;
+        document.writeln(window.a);
+        document.writeln("<br>");
+
+
+
+        function persona(nome, cognome) {
+            this.nome = nome;
+            this.cognome = cognome;
+            this.join= function(){return this.nome + this.cognome};
+        }
+
+
+        mario = new persona("mario","marra");
+        mario.eta = 5;
+        document.writeln(mario.eta);
+
+
+        gino = new persona("gino","foff");
+        persona.prototype.eta=0;
+
+        document.writeln(gino.eta);
+        document.writeln(gino.join());
+
+        document.writeln("<br>");
+
+
+        for (i=0;i<5;i++){
+            document.writeln("<p>\"Io sono il num\" " + i);
+        }
+        document.writeln(i);
+        document.writeln("<br>");
+
+
+
+        /* bad bad
+        c="c";
+        c.a="aa";
+        document.writeln(c.a);
+        */
+
+        c= new String("c");
+        c.a="aa";
+        document.writeln(c.a);
+        document.writeln("<br>");
+
+
+
+        document.writeln("3" + 4);
+        document.writeln(3 + "4");
+        document.writeln(parseInt("3") + 4);
+        document.writeln("3".valueOf() + 4);
+        document.writeln(String(3) + 4);
+        document.writeln("<br>");
+
+
+        document.writeln(mario.toString());
+        document.writeln(mario.valueOf());
+
+        document.writeln("<br>");
+
+
+
+
+        global = 1
+        function g (){
+
+             var global = 2; // this hide global
+            document.writeln(global);
+            function g1 (){
+
+                document.writeln(global);
+            }
+            g1();
+        }
+        g();
+
+        document.writeln(global);
+
+
+
+        req = prompt("aa");
+
+        if (req){
+            document.writeln(req);
+        } else{
+            document.writeln("cancel " + req);
+        }
+
+
+
+
+
+
+
+
+
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+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+    }catch (e) {
+        document.writeln(e.message);
+    }
+
+
+
+
+</script>
+
+
+
+
+</body>
+</html>