JS gets the current width and height of the image. We can use JavaScript clientWidth and clientHeight attributes to get it. The clientWidth and clientHeight properties represent obtaining the current width and height of the image.
Recommended reference: "JavaScript Tutorial"
Let's introduce JS to you with specific code examples. Method to get the current width and height of the image.
The code example is as follows:
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>js获取当前图片宽高的示例</title>
<script type="text/javascript">
function imgSize(){
var myImg = document.querySelector("#sky");
var currWidth = myImg.clientWidth;
var currHeight = myImg.clientHeight;
alert("当前 width=" + currWidth + ", " + "当前 height=" + currHeight);
}
</script>
</head>
<body>
<img src="/static/imghwm/default1.png" data-src="./1/png" class="lazy" id="sky" style="max-width:90%" alt="How to get the current width and height of the image in JS" >
<p><button type="button" onclick="imgSize();">获取</button></p>
</body>
</html>When we click the get button, the imgSize() method defined above will be called, where querySelector() Method can get the element with id="sky" in the document, which is the obtained img image. Then get the current width and height of the element (unit: pixels) through the .clientWidth and clientHeight properties.
For the img image here, we added a width attribute of 250px and an adaptive height.
The final effect is as shown below:
Note: clientWidth The attribute represents the internal width of the element. This property includes padding but excludes vertical scrollbars (if any), borders, and margins, and its value is rounded to an integer.
clientHeight Can be calculated by CSS height CSS padding - horizontal scroll bar height (if present). This property is a read-only property, for elements that do not define CSS or inline layout boxes. 0, otherwise it is the internal height of the element in pixels, including padding but excluding horizontal scrollbars, borders, and margins.
This article is a detailed introduction to JS to obtain the current width and height of an image. It is simple and easy to understand. I hope it will be helpful to friends in need!
The above is the detailed content of How to get the current width and height of the image in JS. 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
SAP NetWeaver Server Adapter for Eclipse
Integrate Eclipse with SAP NetWeaver application server.
MinGW - Minimalist GNU for Windows
This project is in the process of being migrated to osdn.net/projects/mingw, you can continue to follow us there. MinGW: A native Windows port of the GNU Compiler Collection (GCC), freely distributable import libraries and header files for building native Windows applications; includes extensions to the MSVC runtime to support C99 functionality. All MinGW software can run on 64-bit Windows platforms.
SecLists
SecLists is the ultimate security tester's companion. It is a collection of various types of lists that are frequently used during security assessments, all in one place. SecLists helps make security testing more efficient and productive by conveniently providing all the lists a security tester might need. List types include usernames, passwords, URLs, fuzzing payloads, sensitive data patterns, web shells, and more. The tester can simply pull this repository onto a new test machine and he will have access to every type of list he needs.
Notepad++7.3.1
Easy-to-use and free code editor
ZendStudio 13.5.1 Mac
Powerful PHP integrated development environment
