simple jquery problem - creating and calling functions

unwashed potato! · 20 Jan 2009 at 04:42

this is seriously simple i know i just can't seem to do it, perhaps it's because it's late i don't know but i'm hoping when i get up someone can give me the nice and easy solution so i can get on with my work.

i want to create a function and then be able to call it from a timer.

i tried

PHP:

change1(function(){

// do cool jquery amazing stuff

})

didn't work

just in case it makes a difference what i'm trying to do is have 3 functions (change1,change2,change3) running one at a time. change1 checks if there is an element with id1, if yes do effect, wait a bit of time, then run change2, if id1 doesn't exist just do change2 straight away. change2 does same, checks, moves onto change3, which restarts again.

Talbs13 · 20 Jan 2009 at 10:00

Isnt it;

PHP:

$(document).ready(function (change1) {

// do stuff here

});

OR

PHP:

function (change1) {

// do stuff here 

}

nav... · 20 Jan 2009 at 11:53

Code:

function change1(){

    // Cool jQuery stuff

}

and to set on timer...

Code:

$(document).ready(function(){

    setTimeout(change1(), 5000);

});

Ladforce · 20 Jan 2009 at 11:57

Something like the following to chain them. Prob an easier and neater way using jquery though.

Code:

$(document).ready( function()
{
    setTimeout(change1(), //timevalue in ms));
}

function change1()
{
    if (//id exists//)
    {
        setTimeout(change2(),//timeval in ms//)
    }
    else
    {
        change2()
    }
}

function change2()
{
    if (//id exists//)
    {
        setTimeout(change3(),//timeval in ms//)
    }
    else
    {
        change3()
    }
}

function change3()
{

}

edit- beaten

unwashed potato! · 20 Jan 2009 at 16:06

ah silly me that got it working, well almost.

the above is basically exaclty what i have just with the jquery stuff in it. the trouble is i get the following error: "missing ) after argument list" it says this for the line function change1() {

any clues why?

Ladforce · 20 Jan 2009 at 16:15

sorry, i missed the closing bracket round the $(document).ready( function()

should be

Code:

$(document).ready( 
    function()
    {
        setTimeout(change1(), //timevalue in ms));
    }
)

unwashed potato! · 20 Jan 2009 at 21:06

Ladforce said:
sorry, i missed the closing bracket round the $(document).ready( function()

should be

Code:

$(document).ready( function() { setTimeout(change1(), //timevalue in ms)); } )

i tried this but now the fade effect doesn't work, only when in the document.ready(, however the script still does the result if that makes sense. e.g. i want to fade between text, rather then fading it just changes to text.

unwashed potato! · 23 Jan 2009 at 14:07

anyone able to help with this?

Ladforce · 23 Jan 2009 at 20:01

I put too many brackets in that - might be why. Do you know you can debug javascript in firefox in the error console. Would have picked that up straight away.

Code:

$(document).ready( 
    function()
    {
        setTimeout(change1(), //timevalue in ms);
    }
)

unwashed potato! · 23 Jan 2009 at 20:54

Mammalian said:
i tried this but now the fade effect doesn't work, only when in the document.ready(, however the script still does the result if that makes sense. e.g. i want to fade between text, rather then fading it just changes to text.

this is my problem ladforce, not the bracket problem you have said about.

i think i have realised the problem any way so thank you all for the help

Ladforce · 23 Jan 2009 at 21:03

ah sorry just skimmed it and saw the mismatched bracket and assumed that was the problem

glad you got it sorted.