Webmaster2020 home

Click Here!

 
Home / code / javascript

Functions in JavaScripts,

Functions are made to make life easy. You just make the main function and you call on the function wannever you need it, 1 time,2 times or 100 times.

A function exist out:

  • The function keyword
  • The name of the function.
  • A list of arguments separated by commas and between ()
  • The actual function or body of the function, between {}

Example:

<HTML>
<HEAD>

<SCRIPT language="JavaScript">
<!-- start
function square(number)
{
  return number*number
}
// end -->
</SCRIPT>

</HEAD>
<BODY>

<SCRIPT language="JavaScript">
document.write("The function results: ", square(5), ".");
</SCRIPT>

</BODY>
</HTML>

The function square uses the argument number
The function is declared in the HEAD and called on in the BODY with argument 5
The write method is used for the output.

 

TOP

Latest script:

Books: