


HTML DOM compareDocumentPosition() method Compare document locations
HTML DOM The CompareDocumentPosition() method is used to compare the given node position with any other node in any document. The return type of this method is an integer type that describes their position in the document. The integer return value is as specified -
1: No relationship, the two nodes do not belong to the same document. 2: The first node (para1) is positioned after the second node (para2). 4: The first node (para1) is positioned before the second node (para2). 8: The first node (para1) is positioned inside the second node (para2). 16: The second node (para2) is positioned inside the first node (para1). 32: No relationship, or the two nodes are two attributes on the same element.
Syntax
The following is the syntax of the HTML DOM CompareDocumentPosition() method-
node.compareDocumentPosition(node)
The node here is the node object type, specifying that we want to compare with The node to which the current node is compared.
Example
Let us see an example of compareDocumentPosition() method -
<!DOCTYPE html> <html> <body> <p id="para1">This is a paragraph</p> <p id="para2">This is another paragraph</p> <p>Click the button to compare the position of the two paragraphs.</p> <button onclick="docPosition()">POSITION</button> <p id="Sample"></p> <script> function docPosition() { var p1 = document.getElementById("para1").lastChild; var p2 = document.getElementById("para2").lastChild; var x = p2.compareDocumentPosition(p1); document.getElementById("Sample").innerHTML = x; } </script> </body> </html>
Output
This will produce the following output-
When clicking the "Position" button -
In the above example -
we first create two The id is "para1" and the element of "
paragraph 2".
<p id="para1">This is a paragraph</p> <p id="para2">This is another paragraph</p>
Then we created a button POSTION that will execute the docPosition() method when the user clicks -
<button onclick="docPosition()">POSITION</button>
The docPosition() method uses the getElementById() method on the document object to get< ;p> element. Then, it assigns the lastchild attribute values of the two paragraphs to variables p1 and p2 respectively.
Then, we call the compareDocumentPosition() method on p2 with p1 as a parameter. This means we want to compare the position of p2 relative to p1. Since here p2 is after p1, the return value is 2 -
function docPosition() { var p1 = document.getElementById("para1").lastChild; var p2 = document.getElementById("para2").lastChild; var x = p2.compareDocumentPosition(p1); document.getElementById("Sample").innerHTML = x; }
The above is the detailed content of HTML DOM compareDocumentPosition() method Compare document locations. 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

The official account web page update cache, this thing is simple and simple, and it is complicated enough to drink a pot of it. You worked hard to update the official account article, but the user still opened the old version. Who can bear the taste? In this article, let’s take a look at the twists and turns behind this and how to solve this problem gracefully. After reading it, you can easily deal with various caching problems, allowing your users to always experience the freshest content. Let’s talk about the basics first. To put it bluntly, in order to improve access speed, the browser or server stores some static resources (such as pictures, CSS, JS) or page content. Next time you access it, you can directly retrieve it from the cache without having to download it again, and it is naturally fast. But this thing is also a double-edged sword. The new version is online,

The article discusses using HTML5 form validation attributes like required, pattern, min, max, and length limits to validate user input directly in the browser.

Article discusses best practices for ensuring HTML5 cross-browser compatibility, focusing on feature detection, progressive enhancement, and testing methods.

This article demonstrates efficient PNG border addition to webpages using CSS. It argues that CSS offers superior performance compared to JavaScript or libraries, detailing how to adjust border width, style, and color for subtle or prominent effect

The article discusses the HTML <datalist> element, which enhances forms by providing autocomplete suggestions, improving user experience and reducing errors.Character count: 159

This article explains the HTML5 <time> element for semantic date/time representation. It emphasizes the importance of the datetime attribute for machine readability (ISO 8601 format) alongside human-readable text, boosting accessibilit

The article discusses the HTML <progress> element, its purpose, styling, and differences from the <meter> element. The main focus is on using <progress> for task completion and <meter> for stati

The article discusses the HTML <meter> element, used for displaying scalar or fractional values within a range, and its common applications in web development. It differentiates <meter> from <progress> and ex
