Fading out the path as it draws

[acegreen]

Thanks for this @RobinChao. I used it as a guide to create another animation. I was wondering if you know how to fade the beginning of the path as it writes? Ie add some animation that after a delay begins to fade out the text. But not the whole text, the bit that lets say has been "written" for 5s or something.

So the idea is that by the end of the writing animation, there is actually no text. Not sure if you understand what I mean. The animation I'm working on is a heartbeat signature similar to https://jsfiddle.net/j46kxvj5/4/

[Yak0xff]

sorry ,Bro. maybe you can see ElectrocardiogramAnimation.

sometimes later, i will change it to swift style. thanks.