Duplicate function name

[man.shahi@gmail.com]

Hi all,

i have a html page with some javascript functions in a js file linked
to it.
now, if i create a function in the html page with the same name as one
of js functions, how can i call the function that exists on js file
(from html)?

regards,
man shahi

[Martin Honnen]

Re: Duplicate function name



man.shahi@gmail .com wrote:

[color=blue]
> i have a html page with some javascript functions in a js file linked
> to it.
> now, if i create a function in the html page with the same name as one
> of js functions, how can i call the function that exists on js file
> (from html)?[/color]

A second function declaration for the same function name overwrites an
earlier one.

--

Martin Honnen

http://JavaScript.FAQTs.com/

[Randy Webb]

Re: Duplicate function name

man.shahi@gmail .com wrote:[color=blue]
> Hi all,
>
> i have a html page with some javascript functions in a js file linked
> to it.
> now, if i create a function in the html page with the same name as one
> of js functions, how can i call the function that exists on js file
> (from html)?[/color]

Rename the one in your html page or in your .js file, but you have to
rename one of them.

--
Randy
comp.lang.javas cript FAQ - http://jibbering.com/faq & newsgroup weekly

[Daniel Kirsch]

Re: Duplicate function name

man.shahi@gmail .com wrote:[color=blue]
> i have a html page with some javascript functions in a js file linked
> to it.
> now, if i create a function in the html page with the same name as one
> of js functions, how can i call the function that exists on js file
> (from html)?[/color]

You may copy the whole function:

// this one might be in you linked js file
function foo() {
alert("foo1");
}

// copy the function
var foo_old = foo;

// overwrite the existing function. Do it within another function
// as otherwise the parser might have overwritten foo before
// any execution
function tmp() {
window.foo = function() {
if (foo_old)
foo_old();
alert("foo2");
}
}
// call that function now
tmp();

// call the overwritten function
foo();


If you use objects with prototype, this might be easier:

function o() {
}

o.prototype.foo = function() {
alert("foo1");
};

o.prototype.foo _old = o.prototype.foo ;

o.prototype.foo = function() {
if (this.foo_old)
this.foo_old();
alert("foo2");
};

new o().foo();

Daniel