javascript viewport size

Check the image size in Javascript. You only need to write a simple function to determine the image size using Javascript. Of course, many people may not know how to write this function. I found that using ASP to determine the image size is more complicated than that of taob

When using IIS 7.0 on Windows Server to host your website, you can configure IIS to automatically use gzip Compression AlgorithmTo Compress Your JavaScript files, which provides significant improvements in performance and File Download size. However, you can get additional performance benefits by compressing and downgrading your Javascript file at the same time.

When using IIS 7.0 on Windows Server to host your website, you can configure IIS to automatically use the GZIP compression algorithm to compress your JavaScript files, this provides significant improvements in performance and File Download size. However, you can get additional performance benefits by compressing and downgrading your JavaScript file at the same ti

;}.ctrl{padding:50px 0px 0px 0px;background:#f4f4f4;font-size:0px;border-bottom:3px solid #333;}.ctrl a{display:inline-block;width:50px;height:30px;line-height:30px;background:#333;color:#fff;font-size:14px;}.ctrl a:hover{background:#444;color:#fff;font-weight:700;text-decoration:none;}.cont{padding-top:50px;font-size:14px;} JS $ (Function () {function sizeIn (

When JavaScript calls com to pass an array, the COM interface receives a variant-type object, such as array. The VT-type vt_dispatch of this object, therefore, the value indicates an idispatch pointer. The pointer of the idispatch type indicates that the array object is actually a javascript built-in array object. On the Javascript side, we can get the

This example describes the way JavaScript simply gets the original size of a page picture. Share to everyone for your reference, specific as follows: This gets the original width-height through the image () object This way is not so troublesome, direct new image () object, and then the IMG src assignment to him can be obtained. var img = new Image (); IMG.SRC = $ ("#target"). attr ("src"); if (img.co

The computational magnification is essential for JavaScript Magnifier. In a complete magnifying glass structure, a total of 4 objects, original images, thumbnails, lenses, and windows are linked to the magnification. The position of the lens in the thumbnail is actually the display of the window to the original image, so they have the following relationship. magnification = Original image/thumbnail = window/lens The magnification is generally great

JavaScript FontSize Method The FontSize method returns a string that defines the font size using the Size property in the HTML font label. The syntax is as follows: Copy Code code as follows: Str_object.fontsize (size) Parameter description: Parameters Description

Requirement Analysis: When uploading images, if you do not limit the size of the uploaded images, the consequences are very serious. So how can we solve a difficult problem? There are two methods: 1) background processing : Ajax post is submitted to the background, the image is uploaded to the server, and the image size is obtained for processing. 2) frontend handling : Use

For Web developers, file uploading is common and it is essential to determine the file size. Here we mainly introduce several common methods for JavaScript to determine the file size. The first method is to apply ActiveX controls, for example: JavaScript Code This method can be implemented and ea

document is located. JavaScript Code Var winWidth = 0; var winHeight = 0; function findDimensions () // function: Obtain the size {// obtain the window width if (window. innerWidth) winWidth = window. innerWidth; else if (document. body) (document. body. clientWidth) winWidth = document. body. clientWidth; // obtain the window height if (window. innerHeight) winHeight = window. innerHeight; else if (docu