Untitled

<!DOCTYPE html>
<html>
<head>
  <meta charset="utf-8">
  <meta name="viewport" content="width=device-width">
  <title>JS Bin</title>
<style id="jsbin-css">
<>
</style>
</head>
<body>
  <div id="Test"></div>
<script id="jsbin-javascript">
const input = ['# a', '## b', '## c', '### e', '# d', '# e', '## f', '### g']

const generateHeadingNumber = (titlesArray) => {
  let state = [1, 0, 0, 0, 0, 0];// 维护六级标号的状态
  let pre;
  let cur;
  const notZero = value => value > 0;
  let ret = [];
  // TODO: process titles array and generate coressponding heading number
  let level = 1;
  for (let i = 0; i < titlesArray.length; i++) {
    let [hn, title] = titlesArray[i].split(" ");
    cur = hn.length;
    // #号超过六个按六个算
    if (cur > 6) {
      cur = 6;
    }
    if (cur == pre) {
      state[cur - 1] += 1;
    }
    else if (cur > pre) {
      state[cur - 1] += 1;
    }
    else if (cur < pre) {
      for (let i = cur; i < 6; i++)
        state[i] = 0;
      state[cur - 1] += 1;
    }
    // 根据 state 生成标号
    let Headstate = state.filter(notZero).join(".")

    // 生成结构化的titles
    let ht = {
      hn: Headstate,
      title: title
    }

    // push进ret
    ret.push(ht);
    pre = cur; // 把当前的current作为下一级的preCurrent
  }

  return ret;
}

console.log(generateHeadingNumber(input))
const generateToc = (titlesArray, domNode) => {
  // TODO: implement TOC(Table Of Contents) generation
  for(let i = 0; i < titlesArray.length; i++) {
    if(titlesArray[i].hn.length == 1){
      var UL = document.createElement("ul");
    }
    var LI = document.createElement("li");
    LI.innerHTML = titlesArray[i].hn + " " +titlesArray[i].title;
    UL.appendChild(LI);
    domNode.appendChild(UL);
  }
}
var div = document.createElement("div");
generateToc(generateHeadingNumber(input), div);
document.getElementById("Test").appendChild(div)
</script>


<script id="jsbin-source-css" type="text/css"><></script>

<script id="jsbin-source-javascript" type="text/javascript">const input = ['# a', '## b', '## c', '### e', '# d', '# e', '## f', '### g']

const generateHeadingNumber = (titlesArray) => {
  let state = [1, 0, 0, 0, 0, 0];// 维护六级标号的状态
  let pre;
  let cur;
  const notZero = value => value > 0;
  let ret = [];
  // TODO: process titles array and generate coressponding heading number
  let level = 1;
  for (let i = 0; i < titlesArray.length; i++) {
    let [hn, title] = titlesArray[i].split(" ");
    cur = hn.length;
    // #号超过六个按六个算
    if (cur > 6) {
      cur = 6;
    }
    if (cur == pre) {
      state[cur - 1] += 1;
    }
    else if (cur > pre) {
      state[cur - 1] += 1;
    }
    else if (cur < pre) {
      for (let i = cur; i < 6; i++)
        state[i] = 0;
      state[cur - 1] += 1;
    }
    // 根据 state 生成标号
    let Headstate = state.filter(notZero).join(".")

    // 生成结构化的titles
    let ht = {
      hn: Headstate,
      title: title
    }

    // push进ret
    ret.push(ht);
    pre = cur; // 把当前的current作为下一级的preCurrent
  }

  return ret;
}

console.log(generateHeadingNumber(input))
const generateToc = (titlesArray, domNode) => {
  // TODO: implement TOC(Table Of Contents) generation
  for(let i = 0; i < titlesArray.length; i++) {
    if(titlesArray[i].hn.length == 1){
      var UL = document.createElement("ul");
    }
    var LI = document.createElement("li");
    LI.innerHTML = titlesArray[i].hn + " " +titlesArray[i].title;
    UL.appendChild(LI);
    domNode.appendChild(UL);
  }
}
var div = document.createElement("div");
generateToc(generateHeadingNumber(input), div);
document.getElementById("Test").appendChild(div)</script></body>
</html>