Can't found an older code

Question

Hello,
it's not a programming help question, but a Sololearn question.
I can't found a code I watch a while, it's a canvas graph animation, it's creating some vertex to draw graphs with n bones, then it does the opposite way, it's removing vertex one per one until one is left.
I know it's hard to explain but I've the code's image in my head ^^
if someone know which code I'm talking about ^^

Answer 1

Thats exaxtly what I'm looking for xd

Answer 2

No

Answer 3

Is that code written by yourself

Answer 4

NoxFly ドリアン then who