John Resig - Using Waifu2x to Upscale Japanese Prints
In my spare time I’ve been working on a database of Japanese prints for a little over 3.5 years now. I’m fully aware that I’ve never actually written about this, personally very important, project on my blog — until now. Unfortunately this isn’t a post explaining that project. I do still hope to write more about the intricacies of it, some day, but until that time you can watch this talk I gave at
John Resig - Pulley: Easy Github Pull Request Landing
I’ve created a simple tool for landing pull requests from Github, which I’m calling “Pulley“. Landing a pull request from Github can be annoying. You can follow the instructions provided by Github (pulling the code, doing a merge) but that’ll result in a messy commit stream and external ticket trackers that don’t automatically close tickets. The series of commands that you run will typically look
John Resig - jQuery 1.6 and .attr()
jQuery 1.6 and 1.6.1 are out the door. Congrats to the team and everyone that was involved with the release! A relatively controversial change in 1.6 was regarding how attributes and DOM object properties were handled. In 1.6 we wanted to take the major step of completely separating the two, allowing us to create an .attr() method that wasn’t quite so mealy-mouthed with regards to how attributes w
John Resig - ECMAScript Harmony
There’s been some turmoil in the world of ECMAScript. While many are – even, at least, vaguely – familiar with the development of ECMAScript 4 the devil is in the details. I’ve blogged about ES4 extensively in the past – and even did a speaking tour last fall educating developers about its details and implementations, however, a lot has happened since that time. The ECMAScript 4 specification deve
John Resig - Google Groups is Dead
As far as I’m concerned, Google Groups is dead. For the jQuery project we’ve run all of our community discussions through Google Group mailing lists for the past three years. At this moment the main jQuery group is the second most popular programming group (next to Android developers) clocking in at over 21,000 members. We also have the jQuery Dev and jQuery UI groups. The main jQuery group averag
John Resig - New Processing.js and Sizzle.js Sites
Thanks to some generous contributions, there now exist well-designed web sites for two projects of mine: Processing.js and Sizzle.js. Processing.js was released almost a year ago (May 8th of last year) and it finally has an official web site. At this point the project is being primarily maintained by Alistair MacDonald (on Twitter) with active discussions taking place on the Processing.js Google G
John Resig - A Web Developer’s Responsibility
It’s safe to say that the biggest tax on a web developer is spending so much time dealing with browser bugs and incompatibilities. Thus it has become the favorite past-time of all web developers to complain about having to deal with them. Browser bugs are annoying, frustrating, and make your job incredibly difficult. Because browser bugs are so frustrating and such a burden on top of normal develo
John Resig - FireUnit: JavaScript Unit Testing Extension
In my work with the Firebug team over the past couple months I’ve been working with Jan Odvarko on a way to provide some form of unit testing that we can build off of. The result of my work is a new Firefox/Firebug extension called FireUnit. FireUnit provides a simple JavaScript API for doing simple test logging and viewing within a new tab of Firebug. For example, here’s some of the API that you
John Resig - Adv. JavaScript and Processing.js
Recently I gave two talks at the Web 2.0 Expo in New York City and one for the Boston IxDA. Learning Advanced JavaScript An advanced talk on the JavaScript language. Explored functions, closures, function prototypes, and inheritance. The entire presentation was given using an interactive site/presentation (tested in Firefox and Safari). Feel free to browse through the presentation (I’m not sure ho
John Resig - TraceMonkey
I’ve been waiting to blog about this for a long time now. A fantastic new improvement to Mozilla’s JavaScript engine (SpiderMonkey) has landed. Code-named TraceMonkey this engine utilizes a techniques, called trace trees (PDF), which adds just-in-time native code compilation to SpiderMonkey. A major goal of the project has been to set JavaScript up to compete with natively-compiled code, rather th
John Resig - JavaScript Micro-Templating
I’ve had a little utility that I’ve been kicking around for some time now that I’ve found to be quite useful in my JavaScript application-building endeavors. It’s a super-simple templating function that is fast, caches quickly, and is easy to use. I have a couple tricks that I use to make it real fun to mess with. Here’s the source code to the templating function (a more-refined version of this co
John Resig - Deep Profiling jQuery Apps
This evening I was playing around with the idea of profiling jQuery applications – trying to find a convenient way to completely analyze all the code that is being executed in your application. I’ve come up with a plugin that you can inject into a jQuery site that you own and see how the performance breaks down method-by-method. Here’s how you can try this plugin on your own site: Step 1: Copy sit
John Resig - Processing.js
As a sort-of reverse birthday present I’ve decided to release one of my largest projects, in recent memory. This is the project that I’ve been alluding to for quite some time now: I’ve ported the Processing visualization language to JavaScript, using the Canvas element. I’ve been working on this project, off-and-on now, for the past 7 months – it’s been a fun, and quite rewarding, challenge. The f
John Resig - How JavaScript Timers Work
At a fundamental level it’s important to understand how JavaScript timers work. Often times they behave unintuitively because of the single thread which they are in. Let’s start by examining the three functions to which we have access that can construct and manipulate timers. var id = setTimeout(fn, delay); – Initiates a single timer which will call the specified function after the delay. The func
John Resig - Cross-Site XMLHttpRequest
I’ve just finished writing up some docs on the new Cross-Site XMLHttpRequest feature in Firefox 3. I was a little worried at first, but it definitely appears to be both easy-to-implement and easy-to-use. Specifically, it’s an implementation of the W3C Access Control working draft (which is respected by Firefox’s XMLHttpRequest). If you’re interested in giving it a try you should fire up your copy
John Resig - Instant JavaScript Apps
This past summer I swung by Y Combinator a couple times to scope out the new startups. (Fun fact! I was in Y Combinator during the Summer of 2006.) Out of all the startups there one really caught my eye: AppJet. They were setting out to build a quick-and-easy way to construct web applications using, their language of choice, JavaScript. They were doing all of this using Rhino, giving each applicat
John Resig - Simple “Class” Instantiation
This is another trick that I’ve been using for a while to simplify Class-style instantiation of a function in JavaScript. Take a look at the following code, for example: function User(first, last){ this.name = first + " " + last; } var user = new User("John", "Resig"); Pretty straight-forward. Now let’s look at a couple quirks of Class-style instantiation that can cause issues, but can be easily r
John Resig - JavaScript Array Remove
I have another handy method, that I recently developed, that allows you to simply remove an item – or a group of items – from an array. Like with my implementation of JavaScript Method Overloading I wanted something that was concise, elegant, speedy, and highly effective. So here’s the method that I came up with: // Array Remove - By John Resig (MIT Licensed) Array.prototype.remove = function(from
John Resig - Building Interactive Prototypes with jQuery
I gave a talk, recently, at @Media Ajax on jQuery (and a similar one at the Ajax Experience in Boston). I covered a broad amount of information (all the way from the absolute basics up to building and using plugins). » Building Interactive Prototypes with jQuery Here are the files mentioned in the talk: Accordion Menu (Apple.com) (Completed) Ajax Todo List (Completed) Ajax Social Networking Site (
John Resig - The World of ECMAScript
So I did a little bit of digging and I’ve pulled together something fun: I call it “The World of ECMAScript“. It’s a full map detailing everything that exists within the world of ECMAScript (with JavaScript, ActionScript, and JScript being its most-famous implementations). Right now I’m only showing things that can be built on top of (languages, engines, browsers, servers, etc.) – not end user app
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