GSAP Timeline x.forEach is not a function

[kaba92 0 Likes (Newbie)]

Hey There :),

Im trying to make animation to lunch my pokeball with keyframes so i got this error: 

Uncaught TypeError: x.forEach is not a function
    at new Tween (gsap.min.js:10:32168)
    at Timeline.to (gsap.min.js:10:20420)
    at app.js:8:8

dont have any idea, can help me plz?

Thx

[GSAP Helper 98 Likes (Contributor)]

It's pretty tough to troubleshoot without a minimal demo - the issue could be caused by CSS, markup, a third party library, your browser, an external script that's totally unrelated to GSAP, etc. Would you please provide a very simple CodePen or CodeSandbox that demonstrates the issue? 

 

Please don't include your whole project. Just some colored <div> elements and the GSAP code is best (avoid frameworks if possible). See if you can recreate the issue with as few dependancies as possible. If not, incrementally add code bit by bit until it breaks. Usually people solve their own issues during this process! If not, then at least we have a reduced test case which greatly increases your chances of getting a relevant answer.

 

Here's a starter CodePen that loads all the plugins. Just click "fork" at the bottom right and make your minimal demo: 

See the Pen aYYOdN by GreenSock (@GreenSock) on CodePen

 

If you're using something like React/Next/Nuxt/Gatsby or some other framework, you may find CodeSandbox easier to use. 

 

Once we see an isolated demo, we'll do our best to jump in and help with your GSAP-specific questions. 

[GreenSock 18,592 Likes (Superhero)]

My best guess is you are using an outdated version of GSAP. Object-based keyframes we’re added a few minor versions back. 

[kaba92 0 Likes (Newbie)]

Thx for answer,

its working good on codepen so i mean its my version:

See the Pen MWQyyKe by kaba992 (@kaba992) on CodePen

I have many questions:

I am loocking for animation when i launch a pokeball pokemon will pop after:

in my codepen its wonking  so not smooth and the ball trajectoire is not a arc.

Do you have way to improve it?

Thx again for help  and sry for my bad english 😞

Its not resposive open it on codepen The percentage values not working 😞

[kaba92 0 Likes (Newbie)]

and its not responsive can i use x: value to percentage in keyframe?

[OSUblake 18,497 Likes (Superhero)]

4 minutes ago, kaba92 said:

in my codepen its wonking  so not smooth and the ball trajectoire is not a arc.

 

You can use the MotionPathPlugin.

https://greensock.com/docs/v3/Plugins/MotionPathPlugin

 

3 minutes ago, kaba92 said:

and its not responsive can i use x: value to percentage in keyframe?

 

Percentage based transforms are based on the width/height of the element. It does not work the same as say left: "50%". However, you can use other relative units, like vw.