Which Unit Testing Framework?

I’m in the process of working on, and improving, test suite support in TestSwarm (an upcoming project of mine). However, there isn’t a lot of information on which unit testing frameworks developers actually use to test their code (whereas there is more information on which JavaScript libraries are used). It will be of great help […]

Comment · Posted: July 2nd, 2009

JSConf Talk: Games, Performance, TestSwarm

The video from my talk at JSConf has been posted. Thanks to Chris for organizing the conference and the excellent quality of the video. The description from the JSConf site summarizes the talk well: John Resig presents his mystery topic, which is actually three topics that strike his interest. First up is measuring performance and […]

Comment · Posted: June 30th, 2009

Unimpressed by NodeIterator

I just posted a run down of some of the new DOM Traversal APIs in Firefox 3.5. The first half of the post is mostly a recap of my old Element Traversal API post. The second half of the post is all about the new NodeIterator API that was just implemented. For those that are […]

Comment · Posted: June 19th, 2009

ECMAScript 5 Strict Mode, JSON, and More

Previously I analyzed ECMAScript 5’s Object and Property system. This is a huge new aspect of the language and deserved its special consideration. There are a number of other new features and APIs that need attention, as well. The largest of which are Strict Mode and native JSON support. Strict Mode Strict Mode is a […]

Comment · Posted: May 21st, 2009

ECMAScript 5 Objects and Properties

ECMAScript 5 is on its way. Rising from the ashes of ECMAScript 4, which got scaled way back and became ECMAScript 3.1, which was then re-named ECMAScript 5 (more details)- comes a new layer of functionality built on top of our lovable ECMAScript 3. Update: I’ve posted more details on ECMAScript 5 Strict Mode, JSON, […]

Comment · Posted: May 21st, 2009

How do Mobile Browsers Behave?

One of my favorite sources of active mining is that of Peter-Paul Koch digging in to mobile browsers and how they behave. Sponsored by Vodaphone to do a study of various mobile devices and their respective browsers, PPK has been doing some serious analysis of what the landscape looks like. Armed with a battery of […]

Comment · Posted: May 19th, 2009

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. Design and logo by Alistair MacDonald (on Twitter) 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 […]

Comment · Posted: April 25th, 2009

Determining Browser Market Share

A common question that I hear from developers is “What is the market share of Firefox?” (or, more recently, “What is the market share of Firefox 2?”). There are a couple answers but generally you shouldn’t care about the results. How do you determine the global market share of a browser? It’s hard to give […]

Comment · Posted: March 29th, 2009

Next entries » · « Previous entries

Secrets of the JavaScript Ninja

Secrets of the JS Ninja

Secret techniques of top JavaScript programmers. Published by Manning.

John Resig Twitter Updates

@jeresig / Mastodon

Infrequent, short, updates and links.