Having a way to support sorting nodes on the same level in hierarchical Layout

[laike9m]

When using the hierarchical Layout, level is used to specify which hierarchy a node locates. Based on these Stack Overflow questions:

• vis.js Level sorting in Hierarchical Layout
• (my question) In vis-network, how is horizontal order determined in hierarchical layout?
  

It seems there's no way to specify the order of nodes placed on the same level. Please correct me if I'm wrong on that.

I can think of two ways to solve or mitigate this issue:

1. Describe the current rule in documentation, e.g.

   Order on the same level is purely determined by node insertion order.

2. Add another attribute to node which, if specified, is used to determine the order.

[laike9m]

@Thomaash Hi Tomáš, could you help me confirm whether "Order on the same level is purely determined by node insertion order" is true? That can already help me a lot. Thanks!

[Thomaash]

As far as the public API goes: No, the order is not guaranteed in any way, do not rely on it, it may change with any new release or between browsers.

As far as the CURRENT implementation and decent browsers go: Yes.

[laike9m]

Got it, thanks.

[laike9m]

BTW, I know I shouldn't use GitHub to ask questions, but I have an urgent one: https://stackoverflow.com/q/63314093. If possible, could you help take a look? I really appreciate it.