You develop your site, and you are going to deploy it to production. Assuming you have a lot of traffic, you’d need to optimize your assets (javascript and css). Some of these things are also valid for images, but there’s more to be said there, so I’ll focus on css and javascript. It’s way more [...]
I’ve seen tons of articles and comments (especially comments) that tell us how bad, crappy and wrong is the concept of ORM (object-relational mapping). Here are the usual claims, and my comments to them: “they are slow” – there is some overhead in mapping, but it is nothing serious. Chances are you will have much [...]
I’ve seen tons of articles and comments (especially comments) that tell us how bad, crappy and wrong is the concept of ORM (object-relational mapping). Here are the usual claims, and my comments to them: “they are slow” – there is some overhead in mapping, but it is nothing serious. Chances are you will have much [...]
Your site should work even with javascript turned off, they say. I strongly disagree. First, it is a lot of effort to make a function-heavy site work without javascript. You’ve build the thing to work with ajax, cool controls and lots of dialogs. And you should build an entirely new version for those 2 percent [...]
This should really be a simple distinction, but I’ve been answering a slew of similar questions on Stackoverflow, and often people misunderstand the matter. So, what is a classpath? A set of all the classes (and jars with classes) that are required by your application. But there are two, or actually three distinct classpaths: compile-time [...]
There’s a lot of Ops work to every project. Setting up server machines, and clusters of them, managing the cloud instances, setting up the application servers, HAProxy, load balancers, database clusters, message queues, search engine, DNS, alerts, and whatnot. That’s why the Devops movement is popular – there’s a lot more happening outside the application [...]
You may be using JSON to transfer data (we were using it in our message queue). While this is good, it has the only benefit of being human-readable. If you don’t care about readability, you’d probably want to use a more efficient serialization mechanism. Multiple options exist: protobuf, MessagePack, protostuff, java serialization. The easiest of [...]
Though not strictly puns, I tried to make them sort-of funny MHR2TUBPG2NP : – What are you doing on this bench with a bank slip and a marker? – Benchmarking our transactions. What’s “on” on Earth? The air conditional. What do communists and functional programmers have in common? They hate classes. “You shall not pass [...]
If you have a decent development process, you most probably have code reviews. But it appears many people (especially management) believe that code reviews make sure the end product is good, and bug-free. This has nothing to do with reality, as you can probably guess. The purpose of code reviews is to: make sure coding [...]
This article comes right after Facebook rejected me after 3 phone interviews, but it is not going to be a hate-post. In fact, I’ve been planning to write it for a couple of months. But now onto the topic: tech companies (Google, Facebook, VMWare, at least, but certainly many more) are all trying to find [...]
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