我想自定义添加一个div . 可是添加不进去。div 无法展示，只能显示p标签

[wenjing0628]

MU.insertDiv = function(string,alt) {
const div = _inserDivAtSelection(string, alt);

_callbackInput();
return div;

}
const _inserDivAtSelection = function(string, alt, dimensions) {
const sel = document.getSelection();
const range = sel.getRangeAt(0);
const div = document.createElement('div');
range.insertNode(div);
var newContent = document.createTextNode(string);
div.appendChild(newContent);
return div;
};

[stevengharris]

What is the issue? The MU.insertDiv functionality was added as part of the work on #178. There is an minor SwiftUI demo of it in SwiftUIDemo/DivsContentView.swift, but there isn't any documentation of how to use it beyond the code in this demo. Unless you are working on a project that needs to have multiple contenteditable divs within a single document, then this is probably not something you are going to want to use.