Plurrrr

awk, named for its authors Aho, Weinberger, and Kernighan, is a very cool little tool that you know exists and is installed on your system, but you have never bothered to learn how to use. I’m here to tell you that you really ought to!

If I stop for a moment to ponder the question, “what is the coolest tool in Unix?”, the immediate answer is awk. If I insist on pondering it for longer, giving each tool a moment for fair evaluation, the answer is still awk. There are few tools as perfectly suited to their problem as awk is.

Server-sent events (SSE) is a mechanism for sending updates from a server to a client. The fundamental difference with WebSockets is that the communication only goes in one direction. In other words, the client cannot send information to the server. For many usecases this is all you might need. Indeed, if you just want to receive notifications/updates/messages, then using a WebSocket is overkill. Once you’ve implemented the SSE functionality on your server, then all you need on a JavaScript client is an EventSource. Trust me, it’s very straightforward.

Web application load speed is the most basic part of UX. Neglecting performance (load time) of your website can drive away users, because most people tend to leave the page after about 3 seconds if it doesn't load, therefore it's very important to make sure that your application loads as fast as possible. But how can you achieve that? There are many tricks and techniques for speeding up load time of an application and most of them don't involve any actual code change. In some cases, just a single line of config can give you a huge performance improvement. So, in this article we will explore the simplest and most effective tricks that will help you make your web application load as fast as possibly can!