Javascript Delete Button does not work in editorjs

I am trying to write a mini-blog app, and I am trying to make a delete button to delete posts, but It doesn’t work. It shows no any errors. I am confusing what I should do. I have seen many relevant posts, seems not helpful for my situation.

<!DOCTYPE html>
<html lang="ja">
<head>
  <meta charset="utf-8">
    <!-- style file -->
    <!-- CSS only -->
<link href="https://cdn.jsdelivr.net/npm/[email protected]/dist/css/bootstrap.min.css" rel="stylesheet" integrity="sha384-EVSTQN3/azprG1Anm3QDgpJLIm9Nao0Yz1ztcQTwFspd3yD65VohhpuuCOmLASjC" crossorigin="anonymous">

    <!-- editorjs adn -->
    <script src="https://cdn.jsdelivr.net/npm/@editorjs/editorjs@latest"></script>
    <script src="https://cdn.jsdelivr.net/npm/@editorjs/header@latest"></script>
    <script src="https://cdn.jsdelivr.net/npm/@editorjs/list@latest"></script>
    <script src="https://cdn.jsdelivr.net/npm/@editorjs/checklist@latest"></script>
    <script src="https://cdn.jsdelivr.net/npm/@editorjs/quote@latest"></script>
    <script src="https://cdn.jsdelivr.net/npm/@editorjs/code@latest"></script>
    <script src="https://cdn.jsdelivr.net/npm/@editorjs/table@latest"></script>
    <script src="https://cdn.jsdelivr.net/npm/@editorjs/embed@latest"></script>

  <!-- CSS --> 
   <style>
    body {
      margin: auto;
      max-width: 900px;
    }
    #editor {
  
        border: 1px solid;
    }
    .inserted_time {
        font-style: italic;
        font-size: 8px;
        text-align: right;
    }

   </style>
</head>

<body>
<h2>Create a Blog</h2>
<button onclick="toggleBlogForm()" id="switchbutton">Create Post</button>

<div id="allblogs"></div>
<div id="editor"></div>
<div id="conversion"></div>


<button id="post_to_blog">Submit</button>


<div id="message"></div>


<script>

function toggleBlogForm() {
  var x = document.getElementById("switchbutton");
  if (x.innerHTML == "Create Post") {
    x.innerHTML = "View Post";
    document.getElementById("allblogs").style.visibility = "hidden";
  } else {
    x.innerHTML = "Create Post";

  }
}


// saved posts
const blogs = [{"time":1641955404060,"blocks":[{"id":"t_39IX2iIH","type":"header","data":{"text":"First Blog Post","level":2}},{"id":"jBunZLMaJC","type":"paragraph","data":{"text":"gogogo"}}],"version":"2.22.2"},{"time":1641955680472,"blocks":[{"id":"fbfQo5o1_y","type":"list","data":{"style":"ordered","items":["ABC","DEF","HIJ"]}}],"version":"2.22.2"},{"time":1641955749893,"blocks":[{"id":"idQrTDXnzJ","type":"checklist","data":{"items":[{"text":"English","checked":true},{"text":"French","checked":false},{"text":"German","checked":false}]}}],"version":"2.22.2"},{"time":1641957539439,"blocks":[{"id":"ztUBHu3HHg","type":"table","data":{"withHeadings":false,"content":[["Category","Language"],["1","Java"],["2","Python"]]}}],"version":"2.22.2"},{"time":1641959106166,"blocks":[{"id":"Q6Z-TKWLup","type":"embed","data":{"service":"youtube","source":"https://youtu.be/tbXpX4dAqjg","embed":"https://www.youtube.com/embed/tbXpX4dAqjg","width":580,"height":320,"caption":"This is a tutorial for learning PHP Symfony framework."}}],"version":"2.22.2"}]

const blog_inserted_time = ["11:43:24 12/1/2022", "11:43:24 12/1/2022", "11:43:24 12/1/2022", "12:18:59 12/1/2022", "12:45:6 12/1/2022"]

// retrieve posts when loading the page
console.log(blogs.length);
loadingPosts();
console.log('retrieved!')




// constructor for the blog
const editor = new EditorJS({

   holder: 'editor',
   
        tools: {
         header: Header,        
         list: List,        
         checklist: Checklist,
         quote: Quote,
         code: CodeTool,
         table: Table,

         embed: {
          class: Embed,
          inlineToolbar: true,
          config: {
            services: {
              youtube: true,
              coub: true
            }
          }
        }
     }

});


// saving the new post
let saveBtn = document.getElementById('post_to_blog');
saveBtn.addEventListener('click', function() {
    editor.save().then((outputData) => {
        
        // save to local variable
        const jsondata = outputData;
        blogs.push(jsondata);
        console.log(blogs);


        // get and save time
        var currentdate = new Date(); 
        var datetime =  currentdate.getHours() + ":"  
                    + currentdate.getMinutes() + ":" 
                    + currentdate.getSeconds() + " "
                    + currentdate.getDate() + "/"
                    + (currentdate.getMonth()+1)  + "/" 
                    + currentdate.getFullYear();
        blog_inserted_time.push(datetime);
        console.log("inserted time: " + currentdate);
        
        

        // reload all posts
        var divForReset = document.getElementById('allblogs');
        while(divForReset.firstChild){
            divForReset.removeChild(divForReset.firstChild);
        }
        loadingPosts();
            
        }).catch((error) => {
            console.log('Failed: ', error)
        });
        
});



function loadingPosts() {

  for(var i = 0; i < blogs.length; i++) {
            
            
            var getBlocks = blogs[i]['blocks'];
            //console.log('retrieving');
            //console.log(getBlocks);

            for(var y = 0; y < getBlocks.length; y++) {
                console.log('printing text.......');
                console.log(getBlocks[y]);
                var msg = convertDataToHtml(getBlocks);
                console.log(msg);
            }

            // create a div for a post
            var addblog = document.createElement('div');

            // get post data from json array
            var textmsg = document.createTextNode(msg);

            //addblog.appendChild(textmsg);
            var addblog = document.createElement('div');

            // deleteButton
            const deleteButton = document.createElement('button');
           deleteButton.innerHTML = 'delete';
            addblog.appendChild(deleteButton);

            deleteButton.addEventListener('click', evt => {
                evt.preventDefault();
                alert('it does not work!!!');
            });
            
            // get time 
            addblog.innerHTML += "<p class='inserted_time'>"+blog_inserted_time[i]+"</p>";
            // get post
            addblog.innerHTML += msg;
            addblog.style.cssText = "border: 1px solid; padding: 10px";
            document.getElementById('allblogs').appendChild(addblog);


            

            

            msg = '';
 
        }

        

}

function convertDataToHtml(blocks) {
    var convertedHtml = "";
    blocks.map(block => {
        
        switch (block.type) {
          case "header":
            convertedHtml += `<h${block.data.level}>${block.data.text}</h${block.data.level}>`;
            break;
          case "embed":
            convertedHtml += `<div><iframe width="560" height="315" src="${block.data.embed}" frameborder="0" allow="autoplay; encrypted-media" allowfullscreen></iframe>`;
            convertedHtml += `<p>${block.data.caption}</p></div>`;
            break;
          case "paragraph":
            convertedHtml += `<p>${block.data.text}</p>`;
            break;
          case "delimiter":
            convertedHtml += "<hr />";
            break;
          case "image":
            convertedHtml += `<img class="img-fluid" src="${block.data.file.url}" title="${block.data.caption}" /><br /><em>${block.data.caption}</em>`;
            break;
          case "list":
            convertedHtml += "<ul>";
            block.data.items.forEach(function(li) {
              convertedHtml += `<li>${li}</li>`;
            });
            convertedHtml += "</ul>";
            break;
          case "checklist":
            convertedHtml += "<ul>";
            block.data.items.forEach(function(li) {
              if (li["checked"] == true) {
                convertedHtml += `<ol>&#10003; ${li["text"]}</ol>`;
              } else {
                convertedHtml += `<ol>&nbsp;&nbsp;&nbsp; ${li["text"]}</ol>`;
              }
            });
            convertedHtml += "</ul>";
            break;
          case "table":
            convertedHtml += "<table class='table table-striped table-hover'>";
            block.data.content.forEach(function(tdata) {
              convertedHtml += "<tr>";
              for (a = 0; a < tdata.length; a++) {
                convertedHtml += "<td>" + tdata[a] + "</td>";
              }
              
              convertedHtml += "</tr>";
            });
            convertedHtml += "</table>";
            break;

          case "code":
            convertedHtml += `<code>${block.data.code}</code>`;



          default:
            console.log("Unknown block type", block.type);
            break;
        }
    });
    return convertedHtml;
}

</script>
</body>
</html>

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