javascript - How to use vue.js to implement deletion and undelete functions?

Question

How to use VUE to implement deletion and undelete functions?

  <p id="one">
     <p>
         <span>1</span>
         <span>这是一条信息</span>
         <span style="color: red">删除</span>

     </p>
     <p>
         <span>2</span>
         <span>这是一条信息</span>
         <span style="color: red">删除</span>

     </p>
 </p>
 <p id="two">
     <p>
         <span>2</span>
         <span>这是一条信息</span>
         <span style="color: green">撤销删除</span>

     </p>
 </p>
 

Finally, by clicking the button, you can get the deleted information and the information that has not been deleted.

Answer 1

When generating information, add the ID and use the ID to obtain the corresponding information

Answer 2

When deleting, push the value to be deleted to an array delList

When undoing, pop out the last deleted value

function TM(arr){
    this.arr = arr; 
    this.delArr = [];     

    this.remove = (val) => {
        this.arr = this.arr.filter(e => e !== val); 
        this.delArr.push(val); 
    }

    this.back = () => {
        var val = this.delArr.pop(); 
        this.arr.push(val); 
        return val; 
    }
}