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leander

String to ...

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 Some information, especially the syntax, may be out of date for GSAP 3.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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Hello,

 

I´m new to Gsap so sorry for the Nub Question.

 

This works:

var acco1 = document.getElementById("mc_acco1");

dynTween(acco1);

function dynTween(element) {
    TweenLite.fromTo(element, 0.5, {opacity:0.5},{opacity:1.0, ease:Sine.easeInOut, onComplete:callTab});
}

This Not:

btnId = 1;
var mc_new = "acco"+ btnId;
dynTween(mc_new);

function dynTween(element) {
    TweenLite.fromTo(element, 0.5, {opacity:0.5}, {opacity:1.0, ease:Sine.easeInOut, onComplete:callTab});
}

But Why!? And how do I get to work!? Thx for your help :)

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Hi and welcome to forums,

 

In the first example you pass to the function DOM element, so it works. In the second example you pass a string. TweenLite have it's own small internal selector mechanism ( will pass the string to document.getElementById function ). So in the second example this will be the same as TweenLite.fromTo(document.getElementById("acco1"), 0.5, {opacity:0.5}, {opacity:1.0, ease:Sine.easeInOut, onComplete:callTab});

 

The problem I think is that the element with such an ID doesn't exists. 

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