This article describes how to limit the size of an image by using JavaScript. It involves javascript image-targeted operations and has some reference value, for more information about how to limit the size of an image in JavaScript, see the following example. Share it with you for your reference. The specific implementation method is as follows:
/*** Restrict the size of the image. ** @ param thisobj image component * @ param limitW restricted width size * @ param limitH restricted height size */function imageResize (thisobj, limitW, limitH) {var newW; var newH; if (thisobj. width> limitW) {newW = limitW; newH = parseInt (thisobj. height * newW/thisobj. width); // scale by width if (newH> limitH) {newH = limitH; newW = parseInt (thisobj. width * newH/thisobj. height);} thisobj. width = newW; thisobj. height = newH;} else if (thisobj. height> limitH) {newH = limitH; newW = parseInt (thisobj. width * newH/thisobj. height); thisobj. width = newW; thisobj. height = newH ;}}
I hope this article will help you design javascript programs.