Zengularity

Web application performance: profiling with Google Chrome tools

    • Erwan Loisant
    • architecture
    • google chrome
    • hands-on
    • performance
    • profiling
    • woa

Profiling before optimizing is necessary to ensure good performance for a web application. Here we demonstrate the usage of Google Chrome’s Developer Tools, one of the tools that can help you profile your applications and find out how you can improve their performance.

Manipulation de listes en scala

    • Julien Tournay
    • fr
    • hands-on
    • scala

Scala posséde une API de manipulation des List utilisant des concepts issues des langages fonctionnels tel que Haskell. Ce podcast introduit les fonctions les plus courantes de cette API, et présentes ses avantages comparé à Java.

HTML5 mobile web applications: running offline

    • Earle Castledine
    • cache
    • cache manifest
    • en
    • hands-on
    • html5
    • javascript
    • mobile

Native apps work offline - so should your web apps! Sadly, the Internet is not yet available everywhere at all times - but in this video we’ll use the HTML5 offline cache manifest API to “network proof” our mobile web application: so that our users can enjoy our handiwork whenever they want… on a plane, in the subway, when they forget to pay their phone bills…

Create an instant messaging bot in minutes with Google App Engine

    • Erwan Loisant
    • gae
    • hands-on
    • instant messaging

Instant messaging provides a useful user interface to complement web interfaces and email. It allows for instant notification and simple command line interaction. Deploying an instant messaging server to develop a bot for a web application can be a complex task, but Google App Engine provides a simple and powerful alternative.

"Ajaxifier" une application sans modifier le code serveur

    • Guillaume Bort
    • ajax
    • fr
    • hands-on
    • javascript

AJAX doit rester une problématique gérée coté client. Dans cette vidéo on démontre comment on transforme une pagination classique en une pagination ‘AJAX’ en ajoutant simplement quelques lignes de Javascript.

Bottlenecks in Web Application Performance: an Overview

    • Erwan Loisant
    • architecture
    • en
    • hands-on
    • performance
    • profiling
    • web
    • woa

Speed is key for the success of your web application: most users will not tolerate more than a 2 seconds of delay. Bottlenecks could be at different levels often overlooked; we will see where they are and how to address them to build fast applications.

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