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Advanced Javascript: Objects, Arrays, and Array-Like objects
Javascript objects and arrays are both incredibly useful. They’re also incredibly easy to confuse with each other. Mix in a few objects that look like arrays and you’ve got a recipe for confusion!...
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How AJAX Security and Twitter callbacks work
The twitter callback feature is nice – it makes it extremely easy to to add a twitter feed to a page. But to get the most benefit out of it, you really need to understand what it’s doing. We’re going...
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How to use XSLT to style an RSS feed
XSLT is a fairly well-supported technology. It allows you to take any XML file – including RSS – and transform it into a styled HTML document. It’s kind of like CSS on steroids. Unfortunately, most...
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Advanced Javascript: Logical Operators and truthy / falsy
Nearly every website on the internet uses javascript in some form or fashion. Yet very few people, even those who write it and teach it, have a clear understanding of how javascript works! Logical...
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How to build a spam-free contact form without captchas
Most anti-spam methods used by websites today are annoying at best. They use impossible-to-read captcha images, or they make users jump through some kind of hoop to get the email address instead of...
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JavaScript library and .swf for cross-domain flash cookies
I’m working on a project that has a legitimate (non-spammy) reason to need cross-domain cookies, and we settled on flash as a good way to accomplish this. However, I was surprisingly unable to find...
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How Facebook sets and uses cross-domain cookies
I’ve seen a lot of confusion about this lately, so I thought I’d make a quick writeup to explain how facebook does it. (I’ll also give a quick tip on how you can do it yourself.) What Facebook Does...
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Calling all (available) Web Designers & Developers
Even though I’ve been happily employed with Sociable Labs for a while now, I still get fairly frequent calls and emails from people who want to know if I’m available or I “know someone.” The list of...
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How to get your apps ready for Facebook’s OAuth 2.0 upgrade
I just finished a writeup on the necessary JS changes to support Facebook’s OAuth 2.0 upgrade, and then Hilary did a followup post on the server-side. The upgrade enabled right now, but it gets forced...
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How to make Apache Ant tasks run in a default directory
I often open a new tab in my Terminal to run an Ant task in, and often as not I forget to CD into the correct directory first and so I am greeted with this error: Nathan-Mac:~ nathan$ ant...
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Automatically unit testing client-side JavaScript with Jasmine and Node.js
At Sociable Labs, we have hundreds JavaScript unit tests that run on every checkin. They output a JUnit-compatible report that Bamboo can use to track stats and email us if anything failed. Here’s how...
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Automatically removing spamers from the WordPress Coment Notifier Plugin’s...
Photo by anda (: There’s an awesome WordPress plugin called Comment Notifier – what it does is add that check box at the bottom of the comments section. If you leave it checked when you add a comment,...
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