Leaking Memory in Single Page Javascript Applications

Back in the bad old days, not so very long ago, lots of development teams had to support IE6. One of the major problems of writing large javascript applications in antediluvian versions of Internet Explorer was that memory would leak very easily, and ...Read More

FinTech New York Hackathon Round-Up

After some much needed sleep we're able to reflect on the inspired (and at times manic) hacking that took place this weekend in New York. Over 30 teams presented their demos competing for the grand prize of $10,000 from Novus. Hack Projects The various ...Read More

Callback hell is a design choice.

Repeated comments and blog posts about the "callback hell" problem in JavaScript on sites such as HN and Reddit have really baffled this JavaScript programmer. Callback hell is where you call an asynchronous function which provides the result of its computation via a ...Read More

QCon 2013 – Day two – end of day review

Day 1 ended… late. We finished at midnight after the Atlassian guys threw a party with free beer, foosball and a lot of socialising with fellow geeks. Even though it seems like the whole BBC dev team are here they are great guys ...Read More

Testing by Contract in StreamLink JS

StreamLink for Browsers (SL4B) is the JavaScript library that we use to stream data from our server-side Liberator to our client side applications. It provides a simple API for client applications to interact with the financial (or other) data that they are interested in. StreamLink ...Read More

WebDriver, Chrome and Comet Servers

After spending about 3 hours of my day smashing my head against a really tricky little problem in WebDriver I thought I better just write a quick blog to try and warn other weary travellers. The WebDriver findElements() function was incredibly slow. Sometimes it ...Read More

Event Hub – Pub/Sub in the browser

Today, I'd like to talk about EventHub, our in-browser publish/subscribe system. EventHub does a very similar thing to OpenAjax Hub, but for slightly different reasons. Whereas OpenAjax Hub is designed to allow mash-ups of co-operating components from different sites, EventHub is used ...Read More

Limited plumbing hampering your ability to build HTML5 apps ?

Most enterprise-scale language environments such as Java or .net, provide features like single-class-per-file (with on-demand loading); isolation; privacy and namespacing of code; refactoring capabilities; UI paradigms, encouraging separation of concerns; unit and acceptance testing tools with integrated debugging, etc... JavaScript and HMTL5 have ...Read More