Web Front-end
HTML Tutorial
The Chinese translation of HTML DOM Datalist options Collection is 'HTML DOM Datalist options collection'
The Chinese translation of HTML DOM Datalist options Collection is 'HTML DOM Datalist options collection'
HTML DOM Datalist options collection is used to set or return the collection of option values present in the HTML
Properties
The following are the properties of the Datalist option collection-
| Properties | Description |
|---|---|
| Length | Returns the number of |
Method
The following are the methods of Datalist option collection-
| Method | Description |
|---|---|
| [index] td> | Returns the |
| Returns the | |
| namedItem(id) | Returns the |
Syntax
The following is the syntax for a collection of data list options -
datalistObject.options
Example
Let’s look at one Example on Datalist option collection −
Demonstration
<!DOCTYPE html>
<html>
<body>
<h2>Datalist option elements example</h2>
<form>
<input list="fruits">
<datalist id="fruits">
<option value="Papaya">
<option value="Strawberry">
<option value="Guava">
<option value="Mango">
</datalist>
</form>
<p>Click the below button to display the number of datalist option elements</p>
<button onclick="elementNo()">COUNT</button>
<p id="Sample"></p>
<script>
function elementNo() {
var fLength = document.getElementById("fruits").options.length;
document.getElementById("Sample").innerHTML = "The datalist contains " + fLength + " options";
}
</script>
</body>
</html>Output
This will produce the following output-
Single When clicking the "Count" button (you can click on the data list to count the number of elements yourself) -
We create an input box with the attribute list value "fruits", Link it to a list of data with the same id. This means that when we type in the input box, the data list will try to complete our input text using the option values. A data list with the id "fruits" is created with four option values. The data list and its linked input boxes all exist within the form-
<form> <input list="fruits"> <datalist id="fruits"> <option value="Papaya"> <option value="Strawberry"> <option value="Guava"> <option value="Mango"> </datalist> </form>
Then we create a button COUNT, and when the user clicks the button, the elementNo() method will be executed-
<button onclick="elementNo()">COUNT</button>
The elementNo() method gets the options.length property value of the datalist by using the getElementById() method and assigns it to the variable fLength. Then display the option count value in the paragraph with ID "Sample" using its innerHTML attribute -
function elementNo() {
var fLength = document.getElementById("fruits").options.length;
document.getElementById("Sample").innerHTML = "The datalist contains " + fLength + " options";
}The above is the detailed content of The Chinese translation of HTML DOM Datalist options Collection is 'HTML DOM Datalist options collection'. 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
Video Face Swap
Swap faces in any video effortlessly with our completely free AI face swap tool!
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
Is HTML easy to learn for beginners?
Apr 07, 2025 am 12:11 AM
HTML is suitable for beginners because it is simple and easy to learn and can quickly see results. 1) The learning curve of HTML is smooth and easy to get started. 2) Just master the basic tags to start creating web pages. 3) High flexibility and can be used in combination with CSS and JavaScript. 4) Rich learning resources and modern tools support the learning process.
The Roles of HTML, CSS, and JavaScript: Core Responsibilities
Apr 08, 2025 pm 07:05 PM
HTML defines the web structure, CSS is responsible for style and layout, and JavaScript gives dynamic interaction. The three perform their duties in web development and jointly build a colorful website.
Understanding HTML, CSS, and JavaScript: A Beginner's Guide
Apr 12, 2025 am 12:02 AM
WebdevelopmentreliesonHTML,CSS,andJavaScript:1)HTMLstructurescontent,2)CSSstylesit,and3)JavaScriptaddsinteractivity,formingthebasisofmodernwebexperiences.
Gitee Pages static website deployment failed: How to troubleshoot and resolve single file 404 errors?
Apr 04, 2025 pm 11:54 PM
GiteePages static website deployment failed: 404 error troubleshooting and resolution when using Gitee...
What is an example of a starting tag in HTML?
Apr 06, 2025 am 12:04 AM
AnexampleofastartingtaginHTMLis,whichbeginsaparagraph.StartingtagsareessentialinHTMLastheyinitiateelements,definetheirtypes,andarecrucialforstructuringwebpagesandconstructingtheDOM.
How to use CSS3 and JavaScript to achieve the effect of scattering and enlarging the surrounding pictures after clicking?
Apr 05, 2025 am 06:15 AM
To achieve the effect of scattering and enlarging the surrounding images after clicking on the image, many web designs need to achieve an interactive effect: click on a certain image to make the surrounding...
HTML, CSS, and JavaScript: Essential Tools for Web Developers
Apr 09, 2025 am 12:12 AM
HTML, CSS and JavaScript are the three pillars of web development. 1. HTML defines the web page structure and uses tags such as, etc. 2. CSS controls the web page style, using selectors and attributes such as color, font-size, etc. 3. JavaScript realizes dynamic effects and interaction, through event monitoring and DOM operations.
How to implement adaptive layout of Y-axis position in web annotation?
Apr 04, 2025 pm 11:30 PM
The Y-axis position adaptive algorithm for web annotation function This article will explore how to implement annotation functions similar to Word documents, especially how to deal with the interval between annotations...
