Nest Multiple Master Timelines in One Sequence

[th3dv41d]

Hi there, fairly new to GSAP. Looking for help on how to nest multiple master timelines under another master timeline. Below is my example:

 

function one() {
  const tl = gsap.timeline();

  tl
    .set(...)
    .to(..)
  
  return tl;
};

function two() {
  const tl = gsap.timeline();

  tl
    .set(...)
    .to(..)
  
  return tl;
};

function three() {
  const tl = gsap.timeline();

  tl
    .set(...)
    .to(..)
  
  return tl;
};

function four() {
  const tl = gsap.timeline();

  tl
    .set(...)
    .to(..)
  
  return tl;
};

function subMasterOne() {
  const subMasterOne = gsap.timeline();

  subMasterOne
    .add(one())
    .add(two())
};

function subMasterTwo() {
  const subMasterTwo = gsap.timeline();

  subMasterTwo
    .add(three())
    .add(four())
};

function master() {
  const master = gsap.timeline();

  master
    .add(subMasterOne())
    .add(subMasterTwo())
};

master();

Basically, I want to have ONE Master Timeline, in which subMasterOne starts first, and only initiates subMasterTwo after it ends. However, when I structure my code this way, subMasterTwo is always initiating at the same time as subMasterOne. However, if I just merge both subMasterOne and subMasterTwo, the sequencing works fine. Example below:

 

 

Is this possible in anyway? Am I missing something? I can't find a solution for this specific case anywhere. Thanks for your help!

See the Pen abagoVj by th3d4v1d (@th3d4v1d) on CodePen

[GSAP Helper]

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

 

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

[th3dv41d]

Found the problem, has to return the sub master timelines in their functions. Can't believe I missed that!

[GreenSock]

6 hours ago, th3dv41d said:

Found the problem, has to return the sub master timelines in their functions. Can't believe I missed that!

Exactly right! I was about to point that out and then you posted back saying you figured it out. Nice job.