preloading

问题 I'm trying to do a parallel preload of images using the logic implemented on the below link. http://blog.lieldulev.com/2010/05/21/parallel-image-preloading-in-js/ I have a huge amount of images, currently 350+ images with an average of 50KB file size each, amounting to a total of 20MB of images im trying to preload. I need the images for canvas drawing. Using the above logic of parallel downloading, I'm having issues of the browser waiting for 2mins to finish loading the whole page. sometimes

问题 There are numerous plug-ins to preload images, but is there a way to preload javascript? My application uses a big js file and it take about 5 seconds or so to load before the page shows... so, is there a way I can display a "loading message" while I somehow preload the script? (A sort of 'Loading...' like in Gmail) Thanks 回答1: $.getScript('script.js',function(){ //this is your callback function to execute after the script loads }); getScript should work fine. While the script is loading (I

问题 $('<img />') .attr('src', val) .attr('width', "400") .load(function(){ $('.showdata').append( $(this) ); } ); This works perfectly for images, how would this convert 1:1 to iframes? Here quick jsfiddle: http://jsfiddle.net/ET8Gw/ 回答1: Unlike Image objects, IFrames will not load until they are part of the DOM. To get around this you can hide the element, add it to the DOM, and when the load event fires show it: var val = "http://dumb.com/"; $('<iframe />') .hide() .attr('src', val) .attr(

问题 I'm using owlcarousel 2 with lazyload options true, i want to start preloading of next slides images in background while user seeing first image of carousel so user doesn't see the loader and directly see the loaded image in next slides here is my html code <div class="inner-gallery"> <div id="inner-gallery"> <div class="gallery-item"> <div class="gallery-item2"> <img class="lazyOwl" data-src="<?php echo $image[0]; ?>" alt=""/> </div> </div> </div> </div> here is my javascript code $(document

问题 I'm using Video.js to play back videos in MP4 format on a client's website. The player uses html5 video and Adobe Flash Player as a fallback. (In my case it seems to use Flash always so I don't know if the problem exists in the native html5 player as well.) The video only starts playing after the *.mp4 file is completely loaded. So no buffer for a few seconds. The file must be completely downloaded by the browser before it starts playing. When the video is long, the visitor has to wait very

问题 I have been looking into Preloading images with JQuery and came across this Preloading images with jQuery Now can someone tell me, do I have to call the preloaded images in any way? I assume this creates a img and then the browser has it cached (at least for that page) and I just use the preloaded image by it's URI? Can someone clarify here? 回答1: Preloading an image can be done with a simple line of JavaScript: new Image().src='image.png'; For preloading JavaScript files, use the JavaScript

问题 I am using the following code to preload an mp3: $.ajax({ url: "boom.mp3", success: function() { //done } }); Is there anyway I can have multiple elements preloaded (images and mp3 for example)? e.g. $.ajax({ url: "boom.mp3", "moo.jpg", success: function() { //done } }); Cheers! 回答1: If you are using jQuery 1.5, there are two new ways to handle this: deferred and promises. Creating Responsive Applications Using jQuery Deferred and Promises function successFunc(){ console.log( “success!” ); }

问题 Using Zurb's Foundation 4.1.5 (latest version), the Orbit image slider works great. Unfortunately it looks really for the first couple of seconds where all the images appear as a giant bulleted list. Then the JavaScript kicks in and it all is beautiful. How do I avoid the initial ugliness? Can I preload the images? Can I have everything with display: none or visibility: hidden until it's ready? 回答1: Per Foundation documentation We've cleaned up how Orbit initializes by adding a wrapper

问题 What's the best way to preload images? I'm trying to create an image tab that has around 59 png images. Here's the code I have so far: <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Frameset//EN" "http://www.w3.org/TR/html4/frameset.dtd"> <html> <head> <title>Checklist</title> <meta http-equiv="Content-Type" content="text/html; charset=utf-8"> <link rel="stylesheet" type="text/css" href="/systems_hr/Style%20Library/globalstyles_test.css"> <style type="text/css"> #innerframe { width: 100%;

问题 I can't seem to find any solid code on this at the moment, but I wanted to know (if possible) how to have all the images on a webpage preloaded using JavaScript or JQuery, for example. Maybe have a pre-loading screen or overlay that displays while the images are being preloaded to the site, then fades out or disappears when done. Any help/direction on this would be amazing! Thank you! 回答1: You could display a splash screen or a loading screen while the page is loading, and then remove this