preloading

I'm using mbostock queue.js script to load several json files, by doing something like that: var q = queue() .defer(d3.json, "world-110m.json") .defer(d3.tsv, "world-country-names.tsv") .await(ready); where ready is the function to execute when everythin is loaded. I would like to preload an image by adding a defer. Is this possible? I have tried it several ways, but it doesn't work. I suppose that a function must be created, but I can't make it asynchronous, and the queue keeps waiting forever... explunit Here is what queue.js is expecting from the callbacks : The callbacks follow the Node.js

The preload directive is not performing in Chrome as expected. Below is a full HTML page that may be opened in Chrome for results comparison. It should be applying all 5 fonts; instead, it only applies the first preloaded font, makes a faux italic for what should be the second, and simply substitutes the default serif for the remaining 3. Additionally, in the developer's console, this message appears--after about 3 seconds--for each of the five fonts: The resource [URL] was preloaded using link preload but not used within a few seconds from the window's load event. Please make sure it wasn't

I am reading through "Making Isometric Social Real-Time Games with HTML5, CSS3 and Javascript." I am not far into it, and I have run into a canvas problem that has ahd me stumped for most of the day. drawImage() does not seem to be drawing. I have researched the issue and have tried many permutations of pre-loading the image, but so far nothing is working. Here is my code: HTML: <canvas id="game" width="100" height="100"> Your browser doesn't include support for the canvas element. </canvas> CSS: html { height:100%; overflow:hidden } body { margin:0px; padding:0px; height:100%; } and js:

I have a dropzone.js instance on a web page with the following options: autoProcessQueue:false uploadMultiple:true parallelUploads:20 maxFiles:20 It is programmatically instantiated, as it is part of a larger form. I have it rigged up to process the queue when the form is submitted. The goal is for my users to be able to use the dropzone to manage images for an item, so when I load my 'edit/update' view for an item, I'd like to preload the dropzone with the images that had previously been uploaded for that item. Is there a good way to implement this so that the already-there items don't get re

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 $.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 assume on an action or something?) show the loading message and call getScript, then in the callback area,

I have a Place model and an Event model. Places can have events that take place on a specific date . How can I set up my associations and finders to load all places including (eager loading) their events at a specific date without N+1 query problem? What I've tried: class Place has_many :events end Place.all.preload(:events).where("events.start_date > '#{time_in_the_future}'") #ActiveRecord::StatementInvalid: PG::UndefinedTable: ERROR: missing FROM-clause entry for table "events". Place.all.includes(:events).where("events.start_date > '#{time_in_the_future}'").references(:event) # only loads

Is there a way to set thumbnail image on HTML5 video? I want to see some pictures before play. My code looks like this: <video width="470" height="255" controls> <source src="video.mp4" type="video/mp4"> <source src="video.ogg" type="video/ogg"> <source src="video.webm" type="video/webm"> <object data="video.mp4" width="470" height="255"> <embed src="video.swf" width="470" height="255"> </object> </video> Thanks! Jason Brooks Add poster="placeholder.png" to the video tag. <video width="470" height="255" poster="placeholder.png" controls> <source src="video.mp4" type="video/mp4"> <source src=