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GSAP Run Problem

Go to solution Solved by joe_midi,

Warning: Please note

This thread was started before GSAP 3 was released. Some information, especially the syntax, may be out of date for GSAP 3. Please see the GSAP 3 migration guide and release notes for more information about how to update the code to GSAP 3's syntax. 

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There is an issue to which I was informed was a problem with GSAP.  This page works, this page doesn't ? :x

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I don't think it's a GSAP problem - I noticed a few things:


You have typos in your code. For example:


Notice the trailing comma? That's invalid JavaScript.


You also have a crazy amount of space in your transformOrigin value: 

transformOrigin:"50%                                                                                0"

You're using CSS transitions in addition to GSAP - be very careful about that. For example, let's say you've got a 1 second transition on opacity, that means that if you ever try animating that element's opacity with GSAP, the transition will kick in EVERY TIME GSAP MAKES A CHANGE (60 times per second), preventing GSAP's change from being rendered for a full second (in this case). Both GSAP and CSS would technically be performing exactly as they should, but for most users it's not at all what they want/expect. 


It's fine to use CSS transitions if you really want to, but I'd strongly recommend avoiding them on elements that you're animating with GSAP. 

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Hrm, I fixed the code error; but, not the JSFiddle page, rather the hosted page does not play the effect ?

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Can you please create a codepen or jsfiddle that demonstrates the issue? You'll get a much faster answer that way. You said your current jsfiddle page works, right? We need to see a jsfiddle/codepen that doesn't work (illustrates the problem). Any chance you can provide that? I just don't have time at the moment to try to troubleshoot a live page that's tough to edit and tinker with. 

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The problem is only with the live page, those who have offered advice not including this forum have all pointed towards the problem with GSAP library.

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  • Solution

I think because you are calling GSAP straight away rather than letting the page load is the issue here. There isn't a problem with library, its just that its not available to the browser when it reads that script tag.


You are already using a document ready function with your jQuery, so you might as well place it in the bottom of that:

        $(document).ready(function(e) { 
            $(function(){ $("#main_nav > a").on("click, touchstart", function(event){ event.preventDefault(); }).on("touchend", function(event){
                } else { 
                $("#main_nav").removeClass("active"); } }).on("mousedown", function(event){ 
                if(!$("#main_nav").hasClass("active")) { 
                } else { 
                    $("#main_nav").removeClass("active"); } }); 
                         $("#main_nav > li a").on("mousedown", function(event){ 
                             $("#main_nav").removeClass("active"); }); 
                         $("body").on("mouseover", function(event){ if(
                             $("#main_nav").hasClass("active") && !
                             $("#main_nav").is(':hover')) { 
                             $("#main_nav").removeClass("active"); } 

            var wind=new TimelineMax();
            var repeat=wind.repeat(7);
            var crazygo=repeat.yoyo(4);
            wind.to("#main_nav",0.5,{transformOrigin:"50% 0",rotationX:"15",transformPerspective:"125"})


You could also place this script tag at the bottom of the document before the body tag closure.

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Thanks, I'll keep that in mind when using jQuery and GSAP together :)

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