How to delete an added list item using JavaScript?
In HTML, developers can use the "ul" tag to create a list of items. We can add all related items to a single list. We can also use JavaScript to manage list items.
Sometimes, developers need to add or remove list items using JavaScript. We can access the list items using specific attribute values and remove the list items using the removechild() method.
In this tutorial, we will take input from the user and delete list items based on the value.
grammar
Users can use javaScript to delete added list items according to the following syntax
var item = document.getElementById(ID); list.removeChild(item);
In the above syntax, we use id to access the list item. After that, we remove the selected list item from the list using removechild() method.
Example 1 (Removing dynamic elements from the list)
In the example below, we create a list with id equal to "car". Additionally, we created input boxes to get the list item values from the user. Additionally, we have created add car and remove car buttons which call the addCar() and removeCar() functions when the user clicks the corresponding button.
In JavaScript, we access list and text input values. In the addCar() function, we first create the list item and then set the id of the list item. Next, we create a text node, append it to the list item, and then use the appendchild() method to append the list item to the list.
<html>
<body>
<h2> Removing the <i> dynamic list items </i> from the list using JavaScript</h2>
<ul id = "cars">
</ul>
<input type = "text" id = "carName" />
<button onclick = "addCar()"> Add car </button>
<button onclick = "removeCar()"> Remove car </button>
<script>
var carList = document.getElementById("cars");
var carName = document.getElementById("carName");
function addCar() {
var li = document.createElement("li");
li.setAttribute('id', carName.value);
let text = document.createTextNode(carName.value);
li.appendChild(text);
carList.appendChild(li);
}
function removeCar() {
var item = document.getElementById(carName.value);
carList.removeChild(item);
}
</script>
</html>
Example 2 (Remove the last element from the list)
In the example below, we use JavaScript to remove the last list item from the list. This example is very similar to the first example, but the difference is that we remove the last list item in this example and the dynamic list item in the first example.
In the removeCar() function, we use the ‘lastElementChild’ attribute to get the last child element of the list. After that we remove the last element if it exists.
In the output, the user can add multiple items to the list and then click the delete button to delete the list elements.
<html>
<body>
<h2> Removing the <i> last list item </i> from the list using JavaScript </h2>
<ul id = "cars">
</ul>
<input type = "text" id = "carName" />
<button onclick = "addCar()"> Add car </button>
<button onclick = "removeCar()"> Remove last car </button>
<script>
var carList = document.getElementById("cars");
var carName = document.getElementById("carName");
function addCar() {
var li = document.createElement("li");
li.setAttribute('id', carName.value);
let text = document.createTextNode(carName.value);
li.appendChild(text);
carList.appendChild(li);
}
// function to remove the last element from the list
function removeCar() {
// select the last element
var lastElement = carList.lastElementChild;
// if the last element is present, then remove it
if (lastElement) {
carList.removeChild(lastElement);
}
}
</script>
</html>
Example 3
In the example below, we use JavaScript to remove all list items. Here we create the project list.
In JavaScript, we define the addItem() function to add items and the clearAll() function to remove all items from the list. In the clearAll() function, we use the "firstchild" attribute to get the first child of the list and use the removechild() method to remove the child. We use a while loop to iterate until all children of the list are removed.
In the output, the user can press the Clear All button to remove all items from the list.
<html>
<body>
<h2> Removing the <i> all last list items </i> from the list using JavaScript</h2>
<ul id = "itmes">
</ul>
<input type = "text" id = "itemValue" />
<button onclick = "addItems()"> Add itmes </button>
<button onclick = "clearAll()"> clear list </button>
<script>
var items = document.getElementById("itmes");
var itemValue = document.getElementById("itemValue");
function addItems() {
var li = document.createElement("li");
li.setAttribute('id', itemValue.value);
let text = document.createTextNode(itemValue.value);
li.appendChild(text);
items.appendChild(li);
}
// function to clear all the list items
function clearAll() {
while (items.firstChild) {
items.removeChild(items.firstChild);
}
}
</script>
</html>
in conclusion
Users learned to remove dynamic items from lists. The basic approach is that each list item should have a unique identifier to access and delete dynamic list items. Here we use the list item value as the id of the identifier itself.
In the second example, we remove only the last child element from the list; in the third example, we remove all list items together.
The above is the detailed content of How to delete an added list item using JavaScript?. For more information, please follow other related articles on the PHP Chinese website!
Hot AI Tools
Undresser.AI Undress
AI-powered app for creating realistic nude photos
AI Clothes Remover
Online AI tool for removing clothes from photos.
Undress AI Tool
Undress images for free
Clothoff.io
AI clothes remover
AI Hentai Generator
Generate AI Hentai for free.
Hot Article
Hot Tools
Notepad++7.3.1
Easy-to-use and free code editor
SublimeText3 Chinese version
Chinese version, very easy to use
Zend Studio 13.0.1
Powerful PHP integrated development environment
Dreamweaver CS6
Visual web development tools
SublimeText3 Mac version
God-level code editing software (SublimeText3)
Hot Topics
Replace String Characters in JavaScript
Mar 11, 2025 am 12:07 AM
Detailed explanation of JavaScript string replacement method and FAQ This article will explore two ways to replace string characters in JavaScript: internal JavaScript code and internal HTML for web pages. Replace string inside JavaScript code The most direct way is to use the replace() method: str = str.replace("find","replace"); This method replaces only the first match. To replace all matches, use a regular expression and add the global flag g: str = str.replace(/fi
8 Stunning jQuery Page Layout Plugins
Mar 06, 2025 am 12:48 AM
Leverage jQuery for Effortless Web Page Layouts: 8 Essential Plugins jQuery simplifies web page layout significantly. This article highlights eight powerful jQuery plugins that streamline the process, particularly useful for manual website creation
Build Your Own AJAX Web Applications
Mar 09, 2025 am 12:11 AM
So here you are, ready to learn all about this thing called AJAX. But, what exactly is it? The term AJAX refers to a loose grouping of technologies that are used to create dynamic, interactive web content. The term AJAX, originally coined by Jesse J
10 Mobile Cheat Sheets for Mobile Development
Mar 05, 2025 am 12:43 AM
This post compiles helpful cheat sheets, reference guides, quick recipes, and code snippets for Android, Blackberry, and iPhone app development. No developer should be without them! Touch Gesture Reference Guide (PDF) A valuable resource for desig
Improve Your jQuery Knowledge with the Source Viewer
Mar 05, 2025 am 12:54 AM
jQuery is a great JavaScript framework. However, as with any library, sometimes it’s necessary to get under the hood to discover what’s going on. Perhaps it’s because you’re tracing a bug or are just curious about how jQuery achieves a particular UI
10 jQuery Fun and Games Plugins
Mar 08, 2025 am 12:42 AM
10 fun jQuery game plugins to make your website more attractive and enhance user stickiness! While Flash is still the best software for developing casual web games, jQuery can also create surprising effects, and while not comparable to pure action Flash games, in some cases you can also have unexpected fun in your browser. jQuery tic toe game The "Hello world" of game programming now has a jQuery version. Source code jQuery Crazy Word Composition Game This is a fill-in-the-blank game, and it can produce some weird results due to not knowing the context of the word. Source code jQuery mine sweeping game
How do I create and publish my own JavaScript libraries?
Mar 18, 2025 pm 03:12 PM
Article discusses creating, publishing, and maintaining JavaScript libraries, focusing on planning, development, testing, documentation, and promotion strategies.
jQuery Parallax Tutorial - Animated Header Background
Mar 08, 2025 am 12:39 AM
This tutorial demonstrates how to create a captivating parallax background effect using jQuery. We'll build a header banner with layered images that create a stunning visual depth. The updated plugin works with jQuery 1.6.4 and later. Download the
