How to remove li elements on button click in JavaScript?

JavascriptWeb DevelopmentObject Oriented Programming

Let’s say the following is our Unordered List (ul) −

<ul>
   <li class="subjectName">JavaScript <button>Remove</button></li>
   <br>
   <li class="subjectName">MySQL <button>Remove</button></li>
   <br>
   <li class="subjectName">MongoDB <button>Remove</button></li>
   <br>
   <li class="subjectName">Java <button>Remove</button></li>
</ul>

Above, you can see the “Remove” button with every li element. On clicking this button, you can remove any li element.

Following is the code to remove li elements on button click;

Example

 Live Demo

<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initialscale=1.0">
<title>Document</title>
<link rel="stylesheet" href="//code.jquery.com/ui/1.12.1/themes/base/jquery-ui.css">
<script src="https://code.jquery.com/jquery-1.12.4.js"></script>
<script src="https://code.jquery.com/ui/1.12.1/jquery-ui.js"></script>
<script src="http://maxcdn.bootstrapcdn.com/bootstrap/3.3.6/js/bootstrap.min.js"></script>
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.
css" integrity="sha384-BVYiiSIFeK1dGmJRAkycuHAHRg32OmUcww7on3RYdg4Va+PmSTsz/K68vbdEjh4u"
crossorigin="anonymous">
</head>
<body>
<h1>Remove the subjects</h1>
<h2>The Subjects are as follows:</h2>
<ul>
<li class="subjectName">JavaScript <button>Remove</button></li>
<br>
<li class="subjectName">MySQL <button>Remove</button></li>
<br>
<li class="subjectName">MongoDB <button>Remove</button></li>
<br>
<li class="subjectName">Java <button>Remove</button></li>
</ul>
<script>
   var allSubjectName = document.querySelectorAll(".subjectName");
   for (var index = 0; index <allSubjectName.length; index++){
      allSubjectName[index].addEventListener("click", function(){
         this.classList.toggle("active");
      });
      allSubjectName[index].querySelector("button").addEventListener("click",
      function(){
         this.closest(".subjectName").remove();
      });
   }
</script>
</body>
</html>

To run the above program, save the file name “anyName.html(index.html)” and right click on the file. Select the option “Open with Live Server” in VS Code editor.

Output

This will produce the following output −

Now, I am going to remove subject name “MySQL” and “MongoDB” from the list of subjects.

This will produce the following output after clicking the “Remove” button for subjects “MySQL” and “MongoDB” −

raja
Published on 07-Sep-2020 08:03:33
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