javascript - 在文本区域内创建多级列表(Creating Multi level lists within Text Area)

Question

I am currently trying to auto create bullet points in a tree hierarchy formation where when you press tab you would go to the sub point of the main point.

(我目前正在尝试以树状层次结构自动创建项目符号点，当您按Tab键时，您将转到主要点的子点。)

However, I am slightly unsure of what next stage I would take after the main bullet points.

(但是，我不太确定在主要要点之后下一步将做什么。)

A help would be really appreciated.

(一个帮助将不胜感激。)

 function list(){
  const ul = document.getElementById("ul");
  const li = document.createElement("li");
  ul.appendChild(li);
}

<textarea cols = "10" rows = "10" class="editor" id="ul" draggable="true" onfocus="list()" style="font-weight:normal">

  ask by Emre Karayalcin translate from so

Answer 1

等待大神答复