javascript - duplicate functions

DJ_Dance · 01-13-2006, 06:01 AM

Hi,

Just wondering what would occur in the following scenario; say I have two javascript functions which have the same name. Now one is declared in the <head> region of the HTML code enclosed within the <script></script> tags. The other is within a javascript file that is "included" using the 'src' attribute of the script tag. Refer to example below.

HTML Code:

<html>
         <head>
                   <script type="text/javascript" src="first_file.js">
                   // Same function also declared within first_file.js
                   function foo()
                   {
                         ...
                   }
                   </script>
         </head>
</html>

Now assume that the function is called with the following tag:

HTML Code:

<body onLoad="foo()">

Which version of foo is actually executed? I tried it out and found that the version within the javascript file 'first_file.js' is the one that is actually called. However why is this the case? Is it b/c the content of first_file.js gets loaded last, or b/c the functions declared within the file have precedence??

Thanks.

**DumberDrummer** · 01-17-2006, 09:12 AM

Seems to me that it would be because the first_file.js is loaded last, so its still in the Java engine's memory, wiping out the one that was in there before.

01-13-2006, 06:01 AM	#1 (permalink)
DJ_Dance Registered User Join Date: Jul 2005 Posts: 24 OS: Windows XP	javascript - duplicate functions Hi, Just wondering what would occur in the following scenario; say I have two javascript functions which have the same name. Now one is declared in the <head> region of the HTML code enclosed within the <script></script> tags. The other is within a javascript file that is "included" using the 'src' attribute of the script tag. Refer to example below. HTML Code: <html> <head> <script type="text/javascript" src="first_file.js"> // Same function also declared within first_file.js function foo() { ... } </script> </head> </html> Now assume that the function is called with the following tag: HTML Code: <body onLoad="foo()"> Which version of foo is actually executed? I tried it out and found that the version within the javascript file 'first_file.js' is the one that is actually called. However why is this the case? Is it b/c the content of first_file.js gets loaded last, or b/c the functions declared within the file have precedence?? Thanks.

01-17-2006, 09:12 AM	#2 (permalink)
DumberDrummer Cymru am byth Join Date: Oct 2003 Location: Oregon Posts: 5,377 OS: Windows XP Pro SP2 My System	Seems to me that it would be because the first_file.js is loaded last, so its still in the Java engine's memory, wiping out the one that was in there before. __________________ Living with Louie dog's the only way to stay sane _____________________________________________ ... and with those words so begins my lifetime of longing for the devil's warm embrace