how to delete a particular element in javascript

Question

I want to make a function to create a new box when I click 'add new box' button and after that, it will also able to delete the box when I click the particular delete button which is related with the box. How to make the function in javascript? Should I save in an array for every new element that it creates?

My code:

function addBox() {
  var el = document.getElementById('target');
  var clone = el.cloneNode(true);
  var frame = document.getElementById('container');
  var attr = document.createAttribute('val');
  attr.value = 'demo';
  el.setAttributeNode(attr);
  frame.appendChild(clone);
}

<div id="container">
  <div id="target" class="foo" val="demo">
    <div class="content" style="width:100px;height:100px;background:orange;margin:1px" ></div>
  </div>
</div>
<button onclick="addBox();">Add box</button>
<button onclick="deleteBox();">Delete box</button>

I wanted to be like this!

Why not adding id to button when you are creating a new one. And onclick you can take it and remove tnusing document.getElementById — Ahmet Can Güven
– Ahmet Can Güven, Commented Feb 9, 2018 at 8:31

Ionut Necula · Accepted Answer · 2018-02-09 09:00:19Z

You need to target the button element using this as an argument on the deleteBox() function and then the parent of the button by using parentNode and then apply remove() method on it:

function addBox() {
  var el = document.getElementById('target');
  var clone = el.cloneNode(true);
  var frame = document.getElementById('container');
  var attr = document.createAttribute('val');
  attr.value = 'demo';
  el.setAttributeNode(attr);
  frame.appendChild(clone);
}

function deleteBox(e){
  e.parentNode.remove()
}

.content{
  width: 100px;
  height: 100px;
  margin-bottom: 10px;
  background: #F5A623;
  display: inline-block;
  vertical-align: middle;
}

<div id="container">
  <div id="target" class="foo" val="demo">
    <div class="content" style="width:100px;height:100px;background:orange;margin:1px"></div>
    <button onclick="deleteBox(this);">Delete</button>
  </div>
</div>
<button onclick="addBox();">Add box</button>

As a sidenote, I strongly recommend you to have unique ids on elements.

Dui Samarasinghe · Accepted Answer · 2018-02-09 08:45:59Z

1

Try this,

<div id="container">
      <div id="target" class="foo" val="demo">
        <div class="content">aaa</div>
        <button onclick="deleteBox(this);">Delete box</button>
      </div>
</div>
<button onclick="addBox();">Add box</button>


function addBox() {
  var el = document.getElementById('target');
  var clone = el.cloneNode(true);
  var frame = document.getElementById('container');
  var attr = document.createAttribute('val');
  attr.value = 'demo';
  el.setAttributeNode(attr);
  frame.appendChild(clone);
}
function deleteBox(obj){
    obj.parentElement.remove();
}

answered Feb 9, 2018 at 8:45

Dui Samarasinghe

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Comments

xale94 · Accepted Answer · 2018-02-09 08:35:29Z

0

JQuery:

function deleteBox(){
   $( "#target" ).remove();
}

Javascript:

function deleteBox(){
   document.getElementById('target').remove()
}

answered Feb 9, 2018 at 8:35

xale94

4245 silver badges12 bronze badges

Comments

Dhruv Raval · Accepted Answer · 2018-02-09 08:45:22Z

This is alternative example, You can try in your code :)

var sentenceIndex = 1;
        function addSentence() {            
            var n = sentenceIndex;
            var html = '<div class="form-item-wrap" id="sentencebox' + n + '">'+
            '<div class="form-item">'+
            '<input class="form-control" type="text" id="sentence'+n+'" name="sentence[' + n + ']">'+
            '</div>'+
            '<div class="course-region-tool">'+
            '<a href="javascript:void(0);" onclick="removeSentence('+n+');" class="delete" title="delete">'+
            '<i class="icon md-recycle"></i></a></div></div>';
            $("#addSentenceDiv").append(html);
            sentenceIndex = sentenceIndex + 1;
        }
        function removeSentence(id) {
            console.log(id);
            $("#sentencebox"+id).remove();
        }

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