v-md-editor自定义锚点（生成目录）数组转树结构

接前两篇博文，最终方案终于定了，也把之前做的编辑器模式给否决了，原因是系统中有老的文档需要平替，因此就不能通过编辑器这种模式了，太麻烦了。
最终方案：线下手动pandoc word转markdown，然后将文档保存到前端（图片也在对应路径下）页面上菜单绑定文档，文档中自动生成目录；

issue

v-md-editor群里大佬提供了生成自定义锚点（目录）的方式，但是是数组平铺的，根据级别然后展示的时候通过距离形成视觉上的菜单，但是需求模型上是菜单可点击收缩打开方式的，因此，需要调整该数组为树结构，因为本人纯后端，在朋友帮助下，将数组转为了树

解决方法

//0 1 2 3 代表菜单级别
const target = {"titles": [{"title:": "导读","lineIndex": "1","indent": 0},{"title:":"功能范围","lineIndex":"1","indent":1},{"title:":"寻求帮助","lineIndex":"1","indent":1},{"title:":"业务功能介绍","lineIndex":"1","indent":0},{"title:":"1.二级标题","lineIndex":"1","indent":1},{"title:":"1.1 三级标题","lineIndex":"1","indent":2},{"title:":"1.1.1四级","lineIndex":"1","indent":3},{"title:":"1.2 san级","lineIndex":"1","indent":2},{"title:":"2.四3级","lineIndex":"1","indent":1},{"title:":"2.1四2级","lineIndex":"1","indent":2}]
}function getTree(titles) {const res = []let treeNodeList = []let last = nullfunction getParentNode(index) {let currentIndex = index - 1while (!treeNodeList[currentIndex]) {currentIndex--}return treeNodeList[currentIndex]}for (let i = 0, l = titles.length; i < l; i++) {const item = titles[i]if (item.indent == 0) {res.push(item)treeNodeList = []} else {// 父节点const currentParent = getParentNode(item.indent)if (currentParent.children) {currentParent.children.push(item)} else {currentParent.children = [item]}if (last.indent > item.indent) {treeNodeList = treeNodeList.splice(0, item.indent)}}// 把自己放到节点队列中treeNodeList[Number(item.indent)] = itemlast = item}return res
}console.log(JSON.stringify(getTree(target.titles)))

最终得到的转换后的结构
ps: 用后端逻辑开发前端真的是不好转换，总想着先去定义对象，结果根本没那么需要，强弱类型的开发方式真的太不同了。