Solve the problem that the last level of data in the el-cascader cascade selector in Element-ui is empty and there is no data displayed

1. The last level of the el-cascader control is blank and there is no data

 Reason: The children array of the last level of data is empty

2. Solution: Use recursion to set the children in the bottom layer to undefined

getTreeData(data) {
    for (let i = 0; i < data.length; i++) {
        if (data[i].children.length < 1) {
              // 最后一级没有数据将children变成undefined
             data[i].children = undefined;} else {
             // children不为空时继续调用该方法
             this.getTreeData(data[i].children);
             }
        }
    return data;
},

3. Call the method to change the original data

The method of removing HTML tags from a string to get plain text:

Use .replace(/<[^>]*>/g, '')

var myHTML= "<div><h1>卡卡网</h1>\n<p>www.webkaka.com</p></div>";
 
var strippedHtml = myHTML.replace(/<[^>]+>/g, '');
 
console.log(stripedHtml);