JavaScript basics

Some basic JavaScripts

<script type="text/javascript">
  document.write("Hello World!")
</script>

<html>
<body>

<script type="text/javascript">
document.write("This is my first JavaScript!");
</script>

</body>
</html>

Send the client to a new location / URL

<script type="text/javascript">
  window.location="http://www.zimplicit.se";
</script>
[/codefilter_code]

Write some text in the windows status bar

<script type="text/javascript">
  window.status="Some text in the status bar!!";
</script>

Return the length of a string

<script type="text/javascript">
  var txt="Hello World!";
  document.write(txt.length);
</script>

Try Catch

<script type="text/javascript">
var txt="";
function message()
{
try
  {
  aXXXlert("Welcome guest!"); //Should generate error!
  }
catch(err)
  {
  txt="There was an error on this page.\n\n";
  txt+="Click OK to continue viewing this page,\n";
  txt+="or Cancel to return to the home page.\n\n";
  if(!confirm(txt))
    {
    document.location.href="http://www.zimplicit.se/";
    }
  }
}
</script>

Source: http://www.w3schools.com/js/default.asp

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